22120100112 has 80 divisors (see below), whose sum is σ = 63360498240. Its totient is φ = 6593164800.

The previous prime is 22120100111. The next prime is 22120100141. The reversal of 22120100112 is 21100102122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (22120100111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311187 + ... + 375602.

It is an arithmetic number, because the mean of its divisors is an integer number (792006228).

Almost surely, 2^22120100112 is an apocalyptic number.

22120100112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22120100112 is an abundant number, since it is smaller than the sum of its proper divisors (41240398128).

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

22120100112 is a wasteful number, since it uses less digits than its factorization.

22120100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686872 (or 686866 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22120100112 its reverse (21100102122), we get a palindrome (43220202234).

The spelling of 22120100112 in words is "twenty-two billion, one hundred twenty million, one hundred thousand, one hundred twelve".