22222222122 has 24 divisors (see below), whose sum is σ = 46906744896. Its totient is φ = 7017543144.

The previous prime is 22222222111. The next prime is 22222222157. The reversal of 22222222122 is 22122222222.

22222222122 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 5127618 + ... + 5131949.

It is an arithmetic number, because the mean of its divisors is an integer number (1954447704).

Almost surely, 2^22222222122 is an apocalyptic number.

22222222122 is an abundant number, since it is smaller than the sum of its proper divisors (24684522774).

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

22222222122 is a wasteful number, since it uses less digits than its factorization.

22222222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10259610 (or 10259591 counting only the distinct ones).

The product of its digits is 1024, while the sum is 21.

Adding to 22222222122 its reverse (22122222222), we get a palindrome (44344444344).

The spelling of 22222222122 in words is "twenty-two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".