22115230331 has 2 divisors, whose sum is σ = 22115230332. Its totient is φ = 22115230330.

The previous prime is 22115230309. The next prime is 22115230387. The reversal of 22115230331 is 13303251122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22115230331 - 2¹⁴ = 22115213947 is a prime.

It is a super-2 number, since 2×22115230331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22115230297 and 22115230306.

It is not a weakly prime, because it can be changed into another prime (22115230531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11057615165 + 11057615166.

It is an arithmetic number, because the mean of its divisors is an integer number (11057615166).

Almost surely, 2^22115230331 is an apocalyptic number.

22115230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22115230331 is an equidigital number, since it uses as much as digits as its factorization.

22115230331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 22115230331 its reverse (13303251122), we get a palindrome (35418481453).

The spelling of 22115230331 in words is "twenty-two billion, one hundred fifteen million, two hundred thirty thousand, three hundred thirty-one".