22100012120 has 32 divisors (see below), whose sum is σ = 49795225200. Its totient is φ = 8827525248.

The previous prime is 22100012111. The next prime is 22100012161. The reversal of 22100012120 is 2121000122.

It is a happy number.

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, 361274 + ... + 417993.

Almost surely, 2^22100012120 is an apocalyptic number.

22100012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100012120 is an abundant number, since it is smaller than the sum of its proper divisors (27695213080).

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

22100012120 is a wasteful number, since it uses less digits than its factorization.

22100012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779987 (or 779983 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22100012120 its reverse (2121000122), we get a palindrome (24221012242).

The spelling of 22100012120 in words is "twenty-two billion, one hundred million, twelve thousand, one hundred twenty".