22122230312131 has 4 divisors (see below), whose sum is σ = 22539630884112. Its totient is φ = 21704829740152.

The previous prime is 22122230312111. The next prime is 22122230312137. The reversal of 22122230312131 is 13121303222122.

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-22122230312131 is a prime.

It is a super-2 number, since 2×22122230312131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22122230312096 and 22122230312105.

It is not an unprimeable number, because it can be changed into a prime (22122230312137) 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, 208700285911 + ... + 208700286016.

It is an arithmetic number, because the mean of its divisors is an integer number (5634907721028).

Almost surely, 2^{22122230312131} is an apocalyptic number.

22122230312131 is a deficient number, since it is larger than the sum of its proper divisors (417400571981).

22122230312131 is an equidigital number, since it uses as much as digits as its factorization.

22122230312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417400571980.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 22122230312131 its reverse (13121303222122), we get a palindrome (35243533534253).

The spelling of 22122230312131 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred thirty million, three hundred twelve thousand, one hundred thirty-one".