2221331310231 has 8 divisors (see below), whose sum is σ = 3231027360384. Its totient is φ = 1346261400120.

The previous prime is 2221331310217. The next prime is 2221331310239. The reversal of 2221331310231 is 1320131331222.

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

It is not a de Polignac number, because 2221331310231 - 2⁶ = 2221331310167 is a prime.

It is a super-2 number, since 2×2221331310231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221331310239) 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, 33656534971 + ... + 33656535036.

It is an arithmetic number, because the mean of its divisors is an integer number (403878420048).

Almost surely, 2^{2221331310231} is an apocalyptic number.

2221331310231 is a deficient number, since it is larger than the sum of its proper divisors (1009696050153).

2221331310231 is a wasteful number, since it uses less digits than its factorization.

2221331310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67313070021.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2221331310231 its reverse (1320131331222), we get a palindrome (3541462641453).

The spelling of 2221331310231 in words is "two trillion, two hundred twenty-one billion, three hundred thirty-one million, three hundred ten thousand, two hundred thirty-one".