222012111121138 has 16 divisors (see below), whose sum is σ = 358644559769496. Its totient is φ = 102464382199680.

The previous prime is 222012111121093. The next prime is 222012111121139. The reversal of 222012111121138 is 831121111210222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 219524731078689 + 2487380042449 = 14816367^2 + 1577143^2 .

It is not an unprimeable number, because it can be changed into a prime (222012111121139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113428081 + ... + 115368772.

Almost surely, 2^{222012111121138} is an apocalyptic number.

222012111121138 is a deficient number, since it is larger than the sum of its proper divisors (136632448648358).

222012111121138 is a wasteful number, since it uses less digits than its factorization.

222012111121138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228834189.

The product of its (nonzero) digits is 768, while the sum is 28.

The spelling of 222012111121138 in words is "two hundred twenty-two trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, one hundred thirty-eight".