22520230231 has 2 divisors, whose sum is σ = 22520230232. Its totient is φ = 22520230230.

The previous prime is 22520230219. The next prime is 22520230237. The reversal of 22520230231 is 13203202522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22520230231 - 2²³ = 22511841623 is a prime.

It is a super-2 number, since 2×22520230231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22520230237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260115115 + 11260115116.

It is an arithmetic number, because the mean of its divisors is an integer number (11260115116).

Almost surely, 2^22520230231 is an apocalyptic number.

22520230231 is a deficient number, since it is larger than the sum of its proper divisors (1).

22520230231 is an equidigital number, since it uses as much as digits as its factorization.

22520230231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 22520230231 its reverse (13203202522), we get a palindrome (35723432753).

The spelling of 22520230231 in words is "twenty-two billion, five hundred twenty million, two hundred thirty thousand, two hundred thirty-one".