22113321231 has 8 divisors (see below), whose sum is σ = 29839662720. Its totient is φ = 14564596952.

The previous prime is 22113321221. The next prime is 22113321253. The reversal of 22113321231 is 13212331122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22113321231 - 2¹⁴ = 22113304847 is a prime.

It is a super-2 number, since 2×22113321231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22113321198 and 22113321207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113321221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44404011 + ... + 44404508.

It is an arithmetic number, because the mean of its divisors is an integer number (3729957840).

Almost surely, 2^22113321231 is an apocalyptic number.

22113321231 is a deficient number, since it is larger than the sum of its proper divisors (7726341489).

22113321231 is an equidigital number, since it uses as much as digits as its factorization.

22113321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88808605.

The product of its digits is 432, while the sum is 21.

Adding to 22113321231 its reverse (13212331122), we get a palindrome (35325652353).

The spelling of 22113321231 in words is "twenty-two billion, one hundred thirteen million, three hundred twenty-one thousand, two hundred thirty-one".