23312211221331 has 12 divisors (see below), whose sum is σ = 34225213560720. Its totient is φ = 15286695882480.

The previous prime is 23312211221329. The next prime is 23312211221393. The reversal of 23312211221331 is 13312211221332.

23312211221331 is a `hidden beast` number, since 2 + 3 + 312 + 2 + 1 + 12 + 2 + 1 + 331 = 666.

It is not a de Polignac number, because 23312211221331 - 2¹ = 23312211221329 is a prime.

It is a super-2 number, since 2×23312211221331² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23312211221295 and 23312211221304.

It is not an unprimeable number, because it can be changed into a prime (23312211223331) 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, 21231521511 + ... + 21231522608.

It is an arithmetic number, because the mean of its divisors is an integer number (2852101130060).

Almost surely, 2^{23312211221331} is an apocalyptic number.

23312211221331 is a deficient number, since it is larger than the sum of its proper divisors (10913002339389).

23312211221331 is a wasteful number, since it uses less digits than its factorization.

23312211221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42463044186 (or 42463044183 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 23312211221331 its reverse (13312211221332), we get a palindrome (36624422442663).

Subtracting from 23312211221331 its reverse (13312211221332), we obtain a palindrome (9999999999999).

The spelling of 23312211221331 in words is "twenty-three trillion, three hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, three hundred thirty-one".