22115511413 has 2 divisors, whose sum is σ = 22115511414. Its totient is φ = 22115511412.

The previous prime is 22115511343. The next prime is 22115511421. The reversal of 22115511413 is 31411551122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11781365764 + 10334145649 = 108542^2 + 101657^2 .

It is a cyclic number.

It is not a de Polignac number, because 22115511413 - 2¹⁸ = 22115249269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22115511493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11057755706 + 11057755707.

It is an arithmetic number, because the mean of its divisors is an integer number (11057755707).

Almost surely, 2^22115511413 is an apocalyptic number.

It is an amenable number.

22115511413 is a deficient number, since it is larger than the sum of its proper divisors (1).

22115511413 is an equidigital number, since it uses as much as digits as its factorization.

22115511413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 26.

The spelling of 22115511413 in words is "twenty-two billion, one hundred fifteen million, five hundred eleven thousand, four hundred thirteen".