12223231131 has 16 divisors (see below), whose sum is σ = 16720571520. Its totient is φ = 7939800960.

The previous prime is 12223231123. The next prime is 12223231133. The reversal of 12223231131 is 13113232221.

It is not a de Polignac number, because 12223231131 - 2³ = 12223231123 is a prime.

It is a super-2 number, since 2×12223231131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12223231098 and 12223231107.

It is not an unprimeable number, because it can be changed into a prime (12223231133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285565 + ... + 325566.

It is an arithmetic number, because the mean of its divisors is an integer number (1045035720).

Almost surely, 2^12223231131 is an apocalyptic number.

12223231131 is a deficient number, since it is larger than the sum of its proper divisors (4497340389).

12223231131 is a wasteful number, since it uses less digits than its factorization.

12223231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611306.

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

Adding to 12223231131 its reverse (13113232221), we get a palindrome (25336463352).

The spelling of 12223231131 in words is "twelve billion, two hundred twenty-three million, two hundred thirty-one thousand, one hundred thirty-one".