22222012102120 has 32 divisors (see below), whose sum is σ = 50194077942600. Its totient is φ = 8854218047488.

The previous prime is 22222012102039. The next prime is 22222012102127. The reversal of 22222012102120 is 2120121022222.

It can be written as a sum of positive squares in 4 ways, for example, as 21867613343524 + 354398758596 = 4676282^2 + 595314^2 .

It is not an unprimeable number, because it can be changed into a prime (22222012102127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080826885 + ... + 1080847444.

Almost surely, 2^{22222012102120} is an apocalyptic number.

22222012102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222012102120 is an abundant number, since it is smaller than the sum of its proper divisors (27972065840480).

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

22222012102120 is a wasteful number, since it uses less digits than its factorization.

22222012102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161674597 (or 2161674593 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22222012102120 its reverse (2120121022222), we get a palindrome (24342133124342).

The spelling of 22222012102120 in words is "twenty-two trillion, two hundred twenty-two billion, twelve million, one hundred two thousand, one hundred twenty".