222122212012210 has 32 divisors (see below), whose sum is σ = 401212719556272. Its totient is φ = 88539824947200.

The previous prime is 222122212012157. The next prime is 222122212012243. The reversal of 222122212012210 is 12210212221222.

It can be written as a sum of positive squares in 8 ways, for example, as 63748519527289 + 158373692484921 = 7984267^2 + 12584661^2 .

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, 23278479 + ... + 31402738.

Almost surely, 2^{222122212012210} is an apocalyptic number.

222122212012210 is a deficient number, since it is larger than the sum of its proper divisors (179090507544062).

222122212012210 is a wasteful number, since it uses less digits than its factorization.

222122212012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54682638.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222122212012210 its reverse (12210212221222), we get a palindrome (234332424233432).

The spelling of 222122212012210 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, two hundred twelve million, twelve thousand, two hundred ten".