22100120112112 has 80 divisors (see below), whose sum is σ = 49250204928000. Its totient is φ = 9410838958080.

The previous prime is 22100120112061. The next prime is 22100120112137. The reversal of 22100120112112 is 21121102100122.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 11099437 + ... + 12938227.

It is an arithmetic number, because the mean of its divisors is an integer number (615627561600).

Almost surely, 2^{22100120112112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22100120112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24625102464000).

22100120112112 is an abundant number, since it is smaller than the sum of its proper divisors (27150084815888).

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

22100120112112 is a wasteful number, since it uses less digits than its factorization.

22100120112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839494 (or 1839488 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22100120112112 its reverse (21121102100122), we get a palindrome (43221222212234).

The spelling of 22100120112112 in words is "twenty-two trillion, one hundred billion, one hundred twenty million, one hundred twelve thousand, one hundred twelve".