22112102021121 has 40 divisors (see below), whose sum is σ = 37786048052544. Its totient is φ = 12623577490080.

The previous prime is 22112102021117. The next prime is 22112102021137. The reversal of 22112102021121 is 12112020121122.

22112102021121 is a `hidden beast` number, since 221 + 1 + 210 + 2 + 0 + 211 + 21 = 666.

It is not a de Polignac number, because 22112102021121 - 2² = 22112102021117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22112102021094 and 22112102021103.

It is not an unprimeable number, because it can be changed into a prime (22112102021171) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17776555 + ... + 18979728.

Almost surely, 2^{22112102021121} is an apocalyptic number.

22112102021121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22112102021121 is a deficient number, since it is larger than the sum of its proper divisors (15673946031423).

22112102021121 is a wasteful number, since it uses less digits than its factorization.

22112102021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36757363 (or 36757354 counting only the distinct ones).

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

Adding to 22112102021121 its reverse (12112020121122), we get a palindrome (34224122142243).

The spelling of 22112102021121 in words is "twenty-two trillion, one hundred twelve billion, one hundred two million, twenty-one thousand, one hundred twenty-one".