22021000010 has 16 divisors (see below), whose sum is σ = 39639645000. Its totient is φ = 8807990016.

The previous prime is 22020999991. The next prime is 22021000021. The reversal of 22021000010 is 1000012022.

It can be written as a sum of positive squares in 4 ways, for example, as 18464189689 + 3556810321 = 135883^2 + 59639^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270566 + ... + 342414.

Almost surely, 2^22021000010 is an apocalyptic number.

22021000010 is a deficient number, since it is larger than the sum of its proper divisors (17618644990).

22021000010 is a wasteful number, since it uses less digits than its factorization.

22021000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102505.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 22021000010 its reverse (1000012022), we get a palindrome (23021012032).

The spelling of 22021000010 in words is "twenty-two billion, twenty-one million, ten", and thus it is an aban number and an uban number.