A mystique number

mistique numberQuestion:  A unique 10-digit number whose first digit shows the number of zeros in the number, the second number shows the number of 1’s in the entire number, the third number shows the number of 2’s in the entire number, and so on, where the 10th digit shows the number of 9’s in the number.

Answer: The number is 6210001000
It has 6 zeros, 2 ones, 1 two, 0 threes, 0 fours, 0 fives, 1 six, 0 sevens, 0 eights, and 0 nines.