22131424233231 has 32 divisors (see below), whose sum is σ = 31594250188800. Its totient is φ = 13738162664160.

The previous prime is 22131424233229. The next prime is 22131424233271. The reversal of 22131424233231 is 13233242413122.

It is a happy number.

It is not a de Polignac number, because 22131424233231 - 2¹ = 22131424233229 is a prime.

It is a super-2 number, since 2×22131424233231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22131424233192 and 22131424233201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131424233271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16753750 + ... + 18026396.

It is an arithmetic number, because the mean of its divisors is an integer number (987320318400).

Almost surely, 2^{22131424233231} is an apocalyptic number.

22131424233231 is a deficient number, since it is larger than the sum of its proper divisors (9462825955569).

22131424233231 is a wasteful number, since it uses less digits than its factorization.

22131424233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277899.

The product of its digits is 41472, while the sum is 33.

Adding to 22131424233231 its reverse (13233242413122), we get a palindrome (35364666646353).

The spelling of 22131424233231 in words is "twenty-two trillion, one hundred thirty-one billion, four hundred twenty-four million, two hundred thirty-three thousand, two hundred thirty-one".