23110133233221 has 6 divisors (see below), whose sum is σ = 33381303559110. Its totient is φ = 15406755488808.

The previous prime is 23110133233211. The next prime is 23110133233237. The reversal of 23110133233221 is 12233233101132.

23110133233221 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 0 + 1 + 332 + 3 + 322 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21830714352225 + 1279418880996 = 4672335^2 + 1131114^2 .

It is not a de Polignac number, because 23110133233221 - 2⁹ = 23110133232709 is a prime.

It is a super-2 number, since 2×23110133233221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23110133233211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1283896290726 + ... + 1283896290743.

It is an arithmetic number, because the mean of its divisors is an integer number (5563550593185).

Almost surely, 2^{23110133233221} is an apocalyptic number.

It is an amenable number.

23110133233221 is a deficient number, since it is larger than the sum of its proper divisors (10271170325889).

23110133233221 is a wasteful number, since it uses less digits than its factorization.

23110133233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567792581475 (or 2567792581472 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 23110133233221 its reverse (12233233101132), we get a palindrome (35343366334353).

The spelling of 23110133233221 in words is "twenty-three trillion, one hundred ten billion, one hundred thirty-three million, two hundred thirty-three thousand, two hundred twenty-one".