22122111012100 has 288 divisors, whose sum is σ = 53579083219200. Its totient is φ = 7861190400000.

The previous prime is 22122111012097. The next prime is 22122111012191. The reversal of 22122111012100 is 121011122122.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3257559705 + ... + 3257566495.

It is an arithmetic number, because the mean of its divisors is an integer number (186038483400).

Almost surely, 2^{22122111012100} is an apocalyptic number.

22122111012100 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 22122111012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26789541609600).

22122111012100 is an abundant number, since it is smaller than the sum of its proper divisors (31456972207100).

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

22122111012100 is a wasteful number, since it uses less digits than its factorization.

22122111012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295 (or 7288 counting only the distinct ones).

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

Adding to 22122111012100 its reverse (121011122122), we get a palindrome (22243122134222).

The spelling of 22122111012100 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred eleven million, twelve thousand, one hundred".