22521330613 has 2 divisors, whose sum is σ = 22521330614. Its totient is φ = 22521330612.

The previous prime is 22521330593. The next prime is 22521330641. The reversal of 22521330613 is 31603312522.

It is an a-pointer prime, because the next prime (22521330641) can be obtained adding 22521330613 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22454123409 + 67207204 = 149847^2 + 8198^2 .

It is a cyclic number.

It is not a de Polignac number, because 22521330613 - 2³³ = 13931396021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22521330653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11260665306 + 11260665307.

It is an arithmetic number, because the mean of its divisors is an integer number (11260665307).

Almost surely, 2^22521330613 is an apocalyptic number.

It is an amenable number.

22521330613 is a deficient number, since it is larger than the sum of its proper divisors (1).

22521330613 is an equidigital number, since it uses as much as digits as its factorization.

22521330613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 22521330613 in words is "twenty-two billion, five hundred twenty-one million, three hundred thirty thousand, six hundred thirteen".