22222012101100 has 72 divisors (see below), whose sum is σ = 56044667911680. Its totient is φ = 7489840384320.

The previous prime is 22222012101059. The next prime is 22222012101127. The reversal of 22222012101100 is 110121022222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268990324 + ... + 269072923.

It is an arithmetic number, because the mean of its divisors is an integer number (778398165440).

Almost surely, 2^{22222012101100} is an apocalyptic number.

22222012101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222012101100 is an abundant number, since it is smaller than the sum of its proper divisors (33822655810580).

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

22222012101100 is a wasteful number, since it uses less digits than its factorization.

22222012101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538063327 (or 538063320 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22222012101100 its reverse (110121022222), we get a palindrome (22332133123322).

The spelling of 22222012101100 in words is "twenty-two trillion, two hundred twenty-two billion, twelve million, one hundred one thousand, one hundred".