221322122022 has 32 divisors (see below), whose sum is σ = 466709068800. Its totient is φ = 69776032608.

The previous prime is 221322122009. The next prime is 221322122033. The reversal of 221322122022 is 220221223122.

It is a self number, because there is not a number n which added to its sum of digits gives 221322122022.

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, 1529997 + ... + 1668392.

It is an arithmetic number, because the mean of its divisors is an integer number (14584658400).

Almost surely, 2^221322122022 is an apocalyptic number.

221322122022 is an abundant number, since it is smaller than the sum of its proper divisors (245386946778).

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

221322122022 is a wasteful number, since it uses less digits than its factorization.

221322122022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199020.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 221322122022 its reverse (220221223122), we get a palindrome (441543345144).

The spelling of 221322122022 in words is "two hundred twenty-one billion, three hundred twenty-two million, one hundred twenty-two thousand, twenty-two".