22231320310213 has 4 divisors (see below), whose sum is σ = 25407223211680. Its totient is φ = 19055417408748.

The previous prime is 22231320310187. The next prime is 22231320310223. The reversal of 22231320310213 is 31201302313222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22231320310213 - 2¹⁷ = 22231320179141 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 (22231320310223) 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, 1587951450723 + ... + 1587951450736.

It is an arithmetic number, because the mean of its divisors is an integer number (6351805802920).

Almost surely, 2^{22231320310213} is an apocalyptic number.

It is an amenable number.

22231320310213 is a deficient number, since it is larger than the sum of its proper divisors (3175902901467).

22231320310213 is an equidigital number, since it uses as much as digits as its factorization.

22231320310213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175902901466.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 22231320310213 its reverse (31201302313222), we get a palindrome (53432622623435).

The spelling of 22231320310213 in words is "twenty-two trillion, two hundred thirty-one billion, three hundred twenty million, three hundred ten thousand, two hundred thirteen".