222112122222 has 16 divisors (see below), whose sum is σ = 444245690880. Its totient is φ = 74033799672.

The previous prime is 222112122161. The next prime is 222112122251. The reversal of 222112122222 is 222221211222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757368 + ... + 1008875.

It is an arithmetic number, because the mean of its divisors is an integer number (27765355680).

Almost surely, 2^222112122222 is an apocalyptic number.

222112122222 is an abundant number, since it is smaller than the sum of its proper divisors (222133568658).

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

222112122222 is a wasteful number, since it uses less digits than its factorization.

222112122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787207.

The product of its digits is 512, while the sum is 21.

Adding to 222112122222 its reverse (222221211222), we get a palindrome (444333333444).

The spelling of 222112122222 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twenty-two".