In their analysis, many numerologists specifically take into account the composite numbers 11 and 22, and some also consider the numbers 33 and 44. They call them "Master numbers".
And what are the Master numbers? They are the numbers that carry a special power. Vibrating at a high frequency, they operate in etheric, spiritual spheres. They are highly charged, difficult to handle, and require time, maturity, and great effort to integrate into one's personality.
Master numbers have great potential for learning and personal growth. They can lead to major life transformations. However, it depends on the maturity of the individual whether it is the composite master number (11 or 22) or its derivative (2 or 4) that expresses itself more.
The 11 is the most intuitive of all numbers. It represents illumination, a channel to the subconscious and insight without conscious or linear thought. Because 11s are dreamers, the feelings associated with 11 are sensitivity, nervous energy, shyness and sometimes impracticality. The 11 has many of the same traits as the 2 -- particularly its intuition, and also its carelessness -- but the traits are charged with more charisma, leadership and inspiration.
It is a number with inborn duality, which creates dynamism, a potential for growth but also the seeds of inner conflict. It is a number that, when not focused on some goal beyond itself, can be turned inward to create fears and phobias. The 11 walks the edge between greatness and self-destruction.
Its potential for personal power lies in its acceptance of the value of an intuitive way of thinking, as well as a welcoming in of the spiritual truths that surround us. For the 11, peace is not found so much in logic, but in faith. 11 is the psychic's number.
The 22 is the most powerful number in Numerology! It is often called the Master Builder. The 22 can turn the most ambitious of dreams into reality. It brings many of the inspirational insights of the 11, combined with the practicality and methodical nature of the 4. It is unlimited, yet disciplined. It perceives the archetype, and brings it down to earth in some material form. It has big ideas, great plans, idealism, leadership and enormous self-confidence.
22s who don't focus on practical goals can waste their potential. Like the 11, the 22 can easily shrink from its own ambition, causing inner struggles. Those with 11 and 22 Life Path Numbers suffer from the "pressure-cooker" effect very strongly, particularly at an early age.
In order not to become disabled by stress, confusion and self-loathing, these talented young men and women should be given something meaningful -- but not too high-minded or abstract -- to work toward, something beyong just personal gain or recognition. The 22 is meant to serve the world in a practical way.
33 is the most influential of all numbers. It is also called the Master Teacher. The 33 combines the power of 11 and 22, bringing their potential to another level. When expressed to the fullest, 33 in your Numerology Chart helps you look past all personal greed, fear and self-involvement, and instead focuses its considerable abilities toward a single, selfless goal: nothing less than the spiritual uplifting of all mankind. This may sound intimidating, but don't worry: if there's a 33 in your chart, it means you've been given the tools you need to help move this number's mission forward. Those with 33 in their charts inspire a sincere devotion toward some cause. They seek understanding and wisdom for themselves before preaching to others.
The number 33 is extremely rare in numerology, however, and it only matters when found among the core numbers or Pinnacle Cycle Number. In all other cases the 33 should be reduced to a 6.
Source: Hans Decoz: Numerology, Key To Your Inner Self (book)