22222022120 has 16 divisors (see below), whose sum is σ = 49999549860. Its totient is φ = 8888808832.

The previous prime is 22222022111. The next prime is 22222022177. The reversal of 22222022120 is 2122022222.

It can be written as a sum of positive squares in 2 ways, for example, as 21384382756 + 837639364 = 146234^2 + 28942^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277775237 + ... + 277775316.

Almost surely, 2^22222022120 is an apocalyptic number.

22222022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222022120 is an abundant number, since it is smaller than the sum of its proper divisors (27777527740).

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

22222022120 is a wasteful number, since it uses less digits than its factorization.

22222022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555550564 (or 555550560 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22222022120 its reverse (2122022222), we get a palindrome (24344044342).

The spelling of 22222022120 in words is "twenty-two billion, two hundred twenty-two million, twenty-two thousand, one hundred twenty".