222221122213122 has 24 divisors (see below), whose sum is σ = 481480157403180. Its totient is φ = 74073544439040.

The previous prime is 222221122213043. The next prime is 222221122213141. The reversal of 222221122213122 is 221312221122222.

222221122213122 is a `hidden beast` number, since 2 + 2 + 2 + 221 + 122 + 2 + 1 + 312 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 208439067381561 + 13782054831561 = 14437419^2 + 3712419^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5025879 + ... + 21672602.

Almost surely, 2^{222221122213122} is an apocalyptic number.

222221122213122 is an abundant number, since it is smaller than the sum of its proper divisors (259259035190058).

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

222221122213122 is a wasteful number, since it uses less digits than its factorization.

222221122213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27160898 (or 27160895 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 222221122213122 its reverse (221312221122222), we get a palindrome (443533343335344).

The spelling of 222221122213122 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred thirteen thousand, one hundred twenty-two".