10221070656 has 28 divisors (see below), whose sum is σ = 27043249952. Its totient is φ = 3407023488.

The previous prime is 10221070637. The next prime is 10221070693. The reversal of 10221070656 is 65607012201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26617180 + ... + 26617563.

Almost surely, 2^10221070656 is an apocalyptic number.

10221070656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10221070656 is an abundant number, since it is smaller than the sum of its proper divisors (16822179296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10221070656 is an equidigital number, since it uses as much as digits as its factorization.

10221070656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53234758 (or 53234748 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 10221070656 its reverse (65607012201), we get a palindrome (75828082857).

The spelling of 10221070656 in words is "ten billion, two hundred twenty-one million, seventy thousand, six hundred fifty-six".