1010

1010 = 2 x 5 x 101.

1010 has two representations as a sum of two squares: 1010 = 7² + 31² = 13² + 29².

1010 is the sum of two distinct powers of 10 (A052216 and A038444): 1010 = 10³ + 10¹.

1010 is the number of ways to tile a 5 x 12 rectangle with pentominoes.

1010 is 2642 in base 7 and 1342 in base 9. It is 262 in base 21.

1010 is the number of primes less than 10⁴ that do not contain the digit 0 (A091634).

Source: What's Special About This Number?