22131320220223 has 4 divisors (see below), whose sum is σ = 22131351864160. Its totient is φ = 22131288576288.

The previous prime is 22131320220197. The next prime is 22131320220257. The reversal of 22131320220223 is 32202202313122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22131320220223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131320820223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14748618 + ... + 16179751.

It is an arithmetic number, because the mean of its divisors is an integer number (5532837966040).

Almost surely, 2^{22131320220223} is an apocalyptic number.

22131320220223 is a deficient number, since it is larger than the sum of its proper divisors (31643937).

22131320220223 is an equidigital number, since it uses as much as digits as its factorization.

22131320220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31643936.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22131320220223 its reverse (32202202313122), we get a palindrome (54333522533345).

The spelling of 22131320220223 in words is "twenty-two trillion, one hundred thirty-one billion, three hundred twenty million, two hundred twenty thousand, two hundred twenty-three".