11232211131 has 12 divisors (see below), whose sum is σ = 16226859480. Its totient is φ = 7486961760.

The previous prime is 11232211099. The next prime is 11232211141. The reversal of 11232211131 is 13111223211.

It is not a de Polignac number, because 11232211131 - 2⁵ = 11232211099 is a prime.

It is a super-2 number, since 2×11232211131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11232211141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35826 + ... + 154103.

It is an arithmetic number, because the mean of its divisors is an integer number (1352238290).

Almost surely, 2^11232211131 is an apocalyptic number.

11232211131 is a deficient number, since it is larger than the sum of its proper divisors (4994648349).

11232211131 is a wasteful number, since it uses less digits than its factorization.

11232211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196506 (or 196503 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 11232211131 its reverse (13111223211), we get a palindrome (24343434342).

The spelling of 11232211131 in words is "eleven billion, two hundred thirty-two million, two hundred eleven thousand, one hundred thirty-one".