22302120231 has 8 divisors (see below), whose sum is σ = 33040178160. Its totient is φ = 14868080136.

The previous prime is 22302120227. The next prime is 22302120233. The reversal of 22302120231 is 13202120322.

22302120231 is a `hidden beast` number, since 223 + 0 + 212 + 0 + 231 = 666.

It is not a de Polignac number, because 22302120231 - 2² = 22302120227 is a prime.

It is a super-2 number, since 2×22302120231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22302120233) 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, 413002200 + ... + 413002253.

It is an arithmetic number, because the mean of its divisors is an integer number (4130022270).

Almost surely, 2^22302120231 is an apocalyptic number.

22302120231 is a deficient number, since it is larger than the sum of its proper divisors (10738057929).

22302120231 is an equidigital number, since it uses as much as digits as its factorization.

22302120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826004462 (or 826004456 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22302120231 its reverse (13202120322), we get a palindrome (35504240553).

Subtracting from 22302120231 its reverse (13202120322), we obtain a palindrome (9099999909).

The spelling of 22302120231 in words is "twenty-two billion, three hundred two million, one hundred twenty thousand, two hundred thirty-one".