22101122111121 has 12 divisors (see below), whose sum is σ = 32464925135760. Its totient is φ = 14484351213720.

The previous prime is 22101122111113. The next prime is 22101122111147. The reversal of 22101122111121 is 12111122110122.

It is a happy number.

22101122111121 is a `hidden beast` number, since 221 + 0 + 112 + 211 + 1 + 121 = 666.

It is not a de Polignac number, because 22101122111121 - 2³ = 22101122111113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22101122111094 and 22101122111103.

It is not an unprimeable number, because it can be changed into a prime (22101122113121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20810848915 + ... + 20810849976.

It is an arithmetic number, because the mean of its divisors is an integer number (2705410427980).

Almost surely, 2^{22101122111121} is an apocalyptic number.

It is an amenable number.

22101122111121 is a deficient number, since it is larger than the sum of its proper divisors (10363803024639).

22101122111121 is a wasteful number, since it uses less digits than its factorization.

22101122111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41621698956 (or 41621698953 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 22101122111121 its reverse (12111122110122), we get a palindrome (34212244221243).

Subtracting from 22101122111121 its reverse (12111122110122), we obtain a palindrome (9990000000999).

The spelling of 22101122111121 in words is "twenty-two trillion, one hundred one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty-one".