221113320223231 has 8 divisors (see below), whose sum is σ = 221127743896640. Its totient is φ = 221098896995328.

The previous prime is 221113320223163. The next prime is 221113320223249. The reversal of 221113320223231 is 132322023311122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221113320223231 is a prime.

It is a super-2 number, since 2×221113320223231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221113320223231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113320223261) 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, 2022995575 + ... + 2023104871.

It is an arithmetic number, because the mean of its divisors is an integer number (27640967987080).

Almost surely, 2^{221113320223231} is an apocalyptic number.

221113320223231 is a deficient number, since it is larger than the sum of its proper divisors (14423673409).

221113320223231 is a wasteful number, since it uses less digits than its factorization.

221113320223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222753.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 221113320223231 its reverse (132322023311122), we get a palindrome (353435343534353).

The spelling of 221113320223231 in words is "two hundred twenty-one trillion, one hundred thirteen billion, three hundred twenty million, two hundred twenty-three thousand, two hundred thirty-one".