221113123304 has 32 divisors (see below), whose sum is σ = 446414846400. Its totient is φ = 102289616640.

The previous prime is 221113123279. The next prime is 221113123339. The reversal of 221113123304 is 403321311122.

It is a super-3 number, since 3×221113123304³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221113123304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13770212 + ... + 13786259.

It is an arithmetic number, because the mean of its divisors is an integer number (13950463950).

Almost surely, 2^221113123304 is an apocalyptic number.

It is an amenable number.

221113123304 is an abundant number, since it is smaller than the sum of its proper divisors (225301723096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221113123304 is a wasteful number, since it uses less digits than its factorization.

221113123304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27556553 (or 27556549 counting only the distinct ones).

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

Adding to 221113123304 its reverse (403321311122), we get a palindrome (624434434426).

The spelling of 221113123304 in words is "two hundred twenty-one billion, one hundred thirteen million, one hundred twenty-three thousand, three hundred four".