20922128310 has 64 divisors (see below), whose sum is σ = 54038487744. Its totient is φ = 5164953600.

The previous prime is 20922128303. The next prime is 20922128323. The reversal of 20922128310 is 1382122902.

It is a super-2 number, since 2×20922128310² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305151 + ... + 367370.

It is an arithmetic number, because the mean of its divisors is an integer number (844351371).

Almost surely, 2^20922128310 is an apocalyptic number.

20922128310 is an abundant number, since it is smaller than the sum of its proper divisors (33116359434).

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

20922128310 is a wasteful number, since it uses less digits than its factorization.

20922128310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672609.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 20922128310 in words is "twenty billion, nine hundred twenty-two million, one hundred twenty-eight thousand, three hundred ten".