222122211021210 has 32 divisors (see below), whose sum is σ = 533095226883072. Its totient is φ = 59232376224320.

The previous prime is 222122211021059. The next prime is 222122211021239. The reversal of 222122211021210 is 12120112221222.

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, 4779834 + ... + 21612293.

It is an arithmetic number, because the mean of its divisors is an integer number (16659225840096).

Almost surely, 2^{222122211021210} is an apocalyptic number.

222122211021210 is an abundant number, since it is smaller than the sum of its proper divisors (310973015861862).

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

222122211021210 is a wasteful number, since it uses less digits than its factorization.

222122211021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26672678.

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

Adding to 222122211021210 its reverse (12120112221222), we get a palindrome (234242323242432).

The spelling of 222122211021210 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, twenty-one thousand, two hundred ten".