Question

Can you find a seven digit number which describes itself.

The first digit is the number of zeros in the number.
The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours

Answer 1

A seven digit number that describes itself is the number 3211000.
The number has 3 zeros and the number has 2 ones.