22111432231 has 16 divisors (see below), whose sum is σ = 25935048000. Its totient is φ = 18843052704.

The previous prime is 22111432223. The next prime is 22111432243. The reversal of 22111432231 is 13223411122.

It is not a de Polignac number, because 22111432231 - 2³ = 22111432223 is a prime.

It is a super-2 number, since 2×22111432231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111432201) 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, 126976 + ... + 245653.

It is an arithmetic number, because the mean of its divisors is an integer number (1620940500).

Almost surely, 2^22111432231 is an apocalyptic number.

22111432231 is a deficient number, since it is larger than the sum of its proper divisors (3823615769).

22111432231 is an equidigital number, since it uses as much as digits as its factorization.

22111432231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372823 (or 372809 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 22111432231 its reverse (13223411122), we get a palindrome (35334843353).

The spelling of 22111432231 in words is "twenty-two billion, one hundred eleven million, four hundred thirty-two thousand, two hundred thirty-one".