202221121202210 has 32 divisors (see below), whose sum is σ = 397706303598912. Its totient is φ = 73420590847680.

The previous prime is 202221121202173. The next prime is 202221121202351. The reversal of 202221121202210 is 12202121122202.

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, 1429457909 + ... + 1429599368.

It is an arithmetic number, because the mean of its divisors is an integer number (12428321987466).

Almost surely, 2^{202221121202210} is an apocalyptic number.

202221121202210 is a deficient number, since it is larger than the sum of its proper divisors (195485182396702).

202221121202210 is a wasteful number, since it uses less digits than its factorization.

202221121202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859057938.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 202221121202210 its reverse (12202121122202), we get a palindrome (214423242324412).

The spelling of 202221121202210 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, two hundred ten".