222122122122 has 16 divisors (see below), whose sum is σ = 444284949600. Its totient is φ = 74033923152.

The previous prime is 222122122097. The next prime is 222122122139. The reversal of 222122122122 is 221221221222.

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 7 ways as a sum of consecutive naturals, for example, 1624888 + ... + 1756275.

It is an arithmetic number, because the mean of its divisors is an integer number (27767809350).

Almost surely, 2^222122122122 is an apocalyptic number.

222122122122 is an abundant number, since it is smaller than the sum of its proper divisors (222162827478).

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

222122122122 is a wasteful number, since it uses less digits than its factorization.

222122122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392117.

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

Adding to 222122122122 its reverse (221221221222), we get a palindrome (443343343344).

It can be divided in two parts, 2 and 22122122122, that multiplied together give a palindrome (44244244244).

The spelling of 222122122122 in words is "two hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".