20212231031022 has 32 divisors (see below), whose sum is σ = 40606420764672. Its totient is φ = 6707084910624.

The previous prime is 20212231030861. The next prime is 20212231031063. The reversal of 20212231031022 is 22013013221202.

It is a super-2 number, since 2×20212231031022² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20212231031022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126812263 + ... + 126971549.

It is an arithmetic number, because the mean of its divisors is an integer number (1268950648896).

Almost surely, 2^{20212231031022} is an apocalyptic number.

20212231031022 is an abundant number, since it is smaller than the sum of its proper divisors (20394189733650).

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

20212231031022 is a wasteful number, since it uses less digits than its factorization.

20212231031022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254352.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20212231031022 its reverse (22013013221202), we get a palindrome (42225244252224).

The spelling of 20212231031022 in words is "twenty trillion, two hundred twelve billion, two hundred thirty-one million, thirty-one thousand, twenty-two".