22100122121112 has 48 divisors (see below), whose sum is σ = 68405139900240. Its totient is φ = 6314320605888.

The previous prime is 22100122121083. The next prime is 22100122121131. The reversal of 22100122121112 is 21112122100122.

22100122121112 is a `hidden beast` number, since 221 + 0 + 0 + 1 + 221 + 211 + 12 = 666.

It is a super-2 number, since 2×22100122121112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21924723823 + ... + 21924724830.

It is an arithmetic number, because the mean of its divisors is an integer number (1425107081255).

Almost surely, 2^{22100122121112} is an apocalyptic number.

It is an amenable number.

22100122121112 is an abundant number, since it is smaller than the sum of its proper divisors (46305017779128).

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

22100122121112 is a wasteful number, since it uses less digits than its factorization.

22100122121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43849448672 (or 43849448665 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22100122121112 its reverse (21112122100122), we get a palindrome (43212244221234).

The spelling of 22100122121112 in words is "twenty-two trillion, one hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".