22100100120 has 192 divisors, whose sum is σ = 82152083520. Its totient is φ = 5047391232.

The previous prime is 22100100109. The next prime is 22100100193. The reversal of 22100100120 is 2100100122.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4062042 + ... + 4067478.

It is an arithmetic number, because the mean of its divisors is an integer number (427875435).

Almost surely, 2^22100100120 is an apocalyptic number.

22100100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22100100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41076041760).

22100100120 is an abundant number, since it is smaller than the sum of its proper divisors (60051983400).

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

22100100120 is a wasteful number, since it uses less digits than its factorization.

22100100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074 (or 7067 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22100100120 its reverse (2100100122), we get a palindrome (24200200242).

The spelling of 22100100120 in words is "twenty-two billion, one hundred million, one hundred thousand, one hundred twenty".