22450404231 has 8 divisors (see below), whose sum is σ = 33259858160. Its totient is φ = 14966936136.

The previous prime is 22450404211. The next prime is 22450404241. The reversal of 22450404231 is 13240405422.

22450404231 is a `hidden beast` number, since 2 + 24 + 5 + 0 + 404 + 231 = 666.

It is not a de Polignac number, because 22450404231 - 2¹⁴ = 22450387847 is a prime.

It is a super-2 number, since 2×22450404231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 831496453 = 22450404231 / (2 + 2 + 4 + 5 + 0 + 4 + 0 + 4 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22450404195 and 22450404204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22450404211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415748200 + ... + 415748253.

It is an arithmetic number, because the mean of its divisors is an integer number (4157482270).

Almost surely, 2^22450404231 is an apocalyptic number.

22450404231 is a deficient number, since it is larger than the sum of its proper divisors (10809453929).

22450404231 is an equidigital number, since it uses as much as digits as its factorization.

22450404231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831496462 (or 831496456 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 22450404231 its reverse (13240405422), we get a palindrome (35690809653).

The spelling of 22450404231 in words is "twenty-two billion, four hundred fifty million, four hundred four thousand, two hundred thirty-one".