22415521001 has 2 divisors, whose sum is σ = 22415521002. Its totient is φ = 22415521000.

The previous prime is 22415520961. The next prime is 22415521039. The reversal of 22415521001 is 10012551422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18258495376 + 4157025625 = 135124^2 + 64475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22415521001 is a prime.

It is not a weakly prime, because it can be changed into another prime (22415521061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11207760500 + 11207760501.

It is an arithmetic number, because the mean of its divisors is an integer number (11207760501).

Almost surely, 2^22415521001 is an apocalyptic number.

It is an amenable number.

22415521001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22415521001 is an equidigital number, since it uses as much as digits as its factorization.

22415521001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 22415521001 in words is "twenty-two billion, four hundred fifteen million, five hundred twenty-one thousand, one".