2231113203221 has 32 divisors (see below), whose sum is σ = 2592573984000. Its totient is φ = 1880442127872.

The previous prime is 2231113203211. The next prime is 2231113203257. The reversal of 2231113203221 is 1223023111322.

It is not a de Polignac number, because 2231113203221 - 2³⁸ = 1956235296277 is a prime.

It is a super-3 number, since 3×2231113203221³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231113203211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1078352375 + ... + 1078354443.

It is an arithmetic number, because the mean of its divisors is an integer number (81017937000).

Almost surely, 2^{2231113203221} is an apocalyptic number.

It is an amenable number.

2231113203221 is a deficient number, since it is larger than the sum of its proper divisors (361460780779).

2231113203221 is a wasteful number, since it uses less digits than its factorization.

2231113203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5181.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2231113203221 its reverse (1223023111322), we get a palindrome (3454136314543).

The spelling of 2231113203221 in words is "two trillion, two hundred thirty-one billion, one hundred thirteen million, two hundred three thousand, two hundred twenty-one".