22121112313 has 4 divisors (see below), whose sum is σ = 22496046480. Its totient is φ = 21746178148.

The previous prime is 22121112229. The next prime is 22121112341. The reversal of 22121112313 is 31321112122.

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 a cyclic number.

It is not a de Polignac number, because 22121112313 - 2²⁹ = 21584241401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121112353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187466995 + ... + 187467112.

It is an arithmetic number, because the mean of its divisors is an integer number (5624011620).

Almost surely, 2^22121112313 is an apocalyptic number.

It is an amenable number.

22121112313 is a deficient number, since it is larger than the sum of its proper divisors (374934167).

22121112313 is an equidigital number, since it uses as much as digits as its factorization.

22121112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374934166.

The product of its digits is 144, while the sum is 19.

Adding to 22121112313 its reverse (31321112122), we get a palindrome (53442224435).

The spelling of 22121112313 in words is "twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, three hundred thirteen".