202221111212022 has 64 divisors (see below), whose sum is σ = 468080606085120. Its totient is φ = 57044876312736.

The previous prime is 202221111212017. The next prime is 202221111212027. The reversal of 202221111212022 is 220212111122202.

It is an interprime number because it is at equal distance from previous prime (202221111212017) and next prime (202221111212027).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 202221111212022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221111212027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159984903 + ... + 161243949.

It is an arithmetic number, because the mean of its divisors is an integer number (7313759470080).

Almost surely, 2^{202221111212022} is an apocalyptic number.

202221111212022 is an abundant number, since it is smaller than the sum of its proper divisors (265859494873098).

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

202221111212022 is a wasteful number, since it uses less digits than its factorization.

202221111212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307545.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 202221111212022 its reverse (220212111122202), we get a palindrome (422433222334224).

The spelling of 202221111212022 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twelve thousand, twenty-two".