232222021131 has 4 divisors (see below), whose sum is σ = 309629361512. Its totient is φ = 154814680752.

The previous prime is 232222021123. The next prime is 232222021139. The reversal of 232222021131 is 131120222232.

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

It is an interprime number because it is at equal distance from previous prime (232222021123) and next prime (232222021139).

It is not a de Polignac number, because 232222021131 - 2³ = 232222021123 is a prime.

It is a super-2 number, since 2×232222021131² (a number of 24 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 = 232222021098 and 232222021107.

It is not an unprimeable number, because it can be changed into a prime (232222021139) 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, 38703670186 + ... + 38703670191.

It is an arithmetic number, because the mean of its divisors is an integer number (77407340378).

Almost surely, 2^232222021131 is an apocalyptic number.

232222021131 is a deficient number, since it is larger than the sum of its proper divisors (77407340381).

232222021131 is an equidigital number, since it uses as much as digits as its factorization.

232222021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77407340380.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 232222021131 its reverse (131120222232), we get a palindrome (363342243363).

The spelling of 232222021131 in words is "two hundred thirty-two billion, two hundred twenty-two million, twenty-one thousand, one hundred thirty-one".