22100111122020 has 48 divisors (see below), whose sum is σ = 61891980958080. Its totient is φ = 5892251554816.

The previous prime is 22100111121989. The next prime is 22100111122057. The reversal of 22100111122020 is 2022111100122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34410765 + ... + 35047124.

It is an arithmetic number, because the mean of its divisors is an integer number (1289416269960).

Almost surely, 2^{22100111122020} is an apocalyptic number.

22100111122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100111122020 is an abundant number, since it is smaller than the sum of its proper divisors (39791869836060).

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

22100111122020 is a wasteful number, since it uses less digits than its factorization.

22100111122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69463204 (or 69463202 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22100111122020 its reverse (2022111100122), we get a palindrome (24122222222142).

The spelling of 22100111122020 in words is "twenty-two trillion, one hundred billion, one hundred eleven million, one hundred twenty-two thousand, twenty".