222122211120212 has 24 divisors (see below), whose sum is σ = 443239344363816. Its totient is φ = 96487476323328.

The previous prime is 222122211120209. The next prime is 222122211120239. The reversal of 222122211120212 is 212021112221222.

It can be written as a sum of positive squares in 4 ways, for example, as 72152894649796 + 149969316470416 = 8494286^2 + 12246196^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125634733913 + ... + 125634735680.

It is an arithmetic number, because the mean of its divisors is an integer number (18468306015159).

Almost surely, 2^{222122211120212} is an apocalyptic number.

It is an amenable number.

222122211120212 is a deficient number, since it is larger than the sum of its proper divisors (221117133243604).

222122211120212 is a wasteful number, since it uses less digits than its factorization.

222122211120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251269469627 (or 251269469625 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222122211120212 its reverse (212021112221222), we get a palindrome (434143323341434).

The spelling of 222122211120212 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand, two hundred twelve".