22111102120100 has 72 divisors (see below), whose sum is σ = 55267309332480. Its totient is φ = 7521256753920.

The previous prime is 22111102120061. The next prime is 22111102120109. The reversal of 22111102120100 is 102120111122.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (22111102120109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124270505 + ... + 124448304.

Almost surely, 2^{22111102120100} is an apocalyptic number.

22111102120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111102120100 is an abundant number, since it is smaller than the sum of its proper divisors (33156207212380).

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

22111102120100 is a wasteful number, since it uses less digits than its factorization.

22111102120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248718957 (or 248718950 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22111102120100 its reverse (102120111122), we get a palindrome (22213222231222).

The spelling of 22111102120100 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, one hundred twenty thousand, one hundred".