22021002010 has 128 divisors (see below), whose sum is σ = 48641015808. Its totient is φ = 7013952000.

The previous prime is 22021002001. The next prime is 22021002077. The reversal of 22021002010 is 1020012022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17888095 + ... + 17889325.

It is an arithmetic number, because the mean of its divisors is an integer number (380007936).

Almost surely, 2^22021002010 is an apocalyptic number.

22021002010 is an abundant number, since it is smaller than the sum of its proper divisors (26620013798).

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

22021002010 is a wasteful number, since it uses less digits than its factorization.

22021002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22021002010 its reverse (1020012022), we get a palindrome (23041014032).

The spelling of 22021002010 in words is "twenty-two billion, twenty-one million, two thousand, ten".