22313221131 has 4 divisors (see below), whose sum is σ = 29750961512. Its totient is φ = 14875480752.

The previous prime is 22313221111. The next prime is 22313221141. The reversal of 22313221131 is 13112231322.

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

It is not a de Polignac number, because 22313221131 - 2⁷ = 22313221003 is a prime.

It is a super-3 number, since 3×22313221131³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22313221098 and 22313221107.

It is not an unprimeable number, because it can be changed into a prime (22313221111) 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, 3718870186 + ... + 3718870191.

It is an arithmetic number, because the mean of its divisors is an integer number (7437740378).

Almost surely, 2^22313221131 is an apocalyptic number.

22313221131 is a deficient number, since it is larger than the sum of its proper divisors (7437740381).

22313221131 is an equidigital number, since it uses as much as digits as its factorization.

22313221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7437740380.

The product of its digits is 432, while the sum is 21.

Adding to 22313221131 its reverse (13112231322), we get a palindrome (35425452453).

The spelling of 22313221131 in words is "twenty-two billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred thirty-one".