22110112210121 has 16 divisors (see below), whose sum is σ = 24847574169600. Its totient is φ = 19520849979840.

The previous prime is 22110112210103. The next prime is 22110112210163. The reversal of 22110112210121 is 12101221101122.

It is a cyclic number.

It is not a de Polignac number, because 22110112210121 - 2³⁴ = 22092932340937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22110112210121.

It is not an unprimeable number, because it can be changed into a prime (22110112210621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3107555 + ... + 7340103.

It is an arithmetic number, because the mean of its divisors is an integer number (1552973385600).

Almost surely, 2^{22110112210121} is an apocalyptic number.

It is an amenable number.

22110112210121 is a deficient number, since it is larger than the sum of its proper divisors (2737461959479).

22110112210121 is a wasteful number, since it uses less digits than its factorization.

22110112210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250056.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22110112210121 its reverse (12101221101122), we get a palindrome (34211333311243).

The spelling of 22110112210121 in words is "twenty-two trillion, one hundred ten billion, one hundred twelve million, two hundred ten thousand, one hundred twenty-one".