22132231131 has 4 divisors (see below), whose sum is σ = 29509641512. Its totient is φ = 14754820752.

The previous prime is 22132231127. The next prime is 22132231139. The reversal of 22132231131 is 13113223122.

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

It is not a de Polignac number, because 22132231131 - 2² = 22132231127 is a prime.

It is a super-2 number, since 2×22132231131² (a number of 21 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 = 22132231098 and 22132231107.

It is not an unprimeable number, because it can be changed into a prime (22132231139) 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, 3688705186 + ... + 3688705191.

It is an arithmetic number, because the mean of its divisors is an integer number (7377410378).

Almost surely, 2^22132231131 is an apocalyptic number.

22132231131 is a deficient number, since it is larger than the sum of its proper divisors (7377410381).

22132231131 is an equidigital number, since it uses as much as digits as its factorization.

22132231131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377410380.

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

Adding to 22132231131 its reverse (13113223122), we get a palindrome (35245454253).

The spelling of 22132231131 in words is "twenty-two billion, one hundred thirty-two million, two hundred thirty-one thousand, one hundred thirty-one".