202221122222210 has 64 divisors (see below), whose sum is σ = 448014400227072. Its totient is φ = 63997246561536.

The previous prime is 202221122222149. The next prime is 202221122222221. The reversal of 202221122222210 is 12222221122202.

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, 20128097 + ... + 28453163.

It is an arithmetic number, because the mean of its divisors is an integer number (7000225003548).

Almost surely, 2^{202221122222210} is an apocalyptic number.

202221122222210 is an abundant number, since it is smaller than the sum of its proper divisors (245793278004862).

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

202221122222210 is a wasteful number, since it uses less digits than its factorization.

202221122222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351787.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 202221122222210 its reverse (12222221122202), we get a palindrome (214443343344412).

The spelling of 202221122222210 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred ten".