It is great that you are noticing the repetitive numbers! I think that this happens for most people, but that they do not notice it very often.
When you start to see repetitive numbers like this - whether it is the same number, or a series of numbers that repeats - I would jot it down in a journal. All numbers are important, but Masters numbers (like 11 and 22) do carry more weight. With double digit numbers, look at the entire number, and then add the two numbers together until you get a single number. For instance, 11 adds up to 2 (1+1=2). They are two different levels of vibration for the same thing.