222100100112 has 80 divisors (see below), whose sum is σ = 627495676992. Its totient is φ = 67133468160.

The previous prime is 222100100111. The next prime is 222100100149. The reversal of 222100100112 is 211001001222.

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 (222100100111) 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, 320163 + ... + 739394.

Almost surely, 2^222100100112 is an apocalyptic number.

222100100112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222100100112 is an abundant number, since it is smaller than the sum of its proper divisors (405395576880).

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

222100100112 is a wasteful number, since it uses less digits than its factorization.

222100100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059976 (or 1059970 counting only the distinct ones).

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

Adding to 222100100112 its reverse (211001001222), we get a palindrome (433101101334).

The spelling of 222100100112 in words is "two hundred twenty-two billion, one hundred million, one hundred thousand, one hundred twelve".