13217322216697 has 2 divisors, whose sum is σ = 13217322216698. Its totient is φ = 13217322216696.

The previous prime is 13217322216649. The next prime is 13217322216713. The reversal of 13217322216697 is 79661222371231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7978698466281 + 5238623750416 = 2824659^2 + 2288804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13217322216697 is a prime.

It is not a weakly prime, because it can be changed into another prime (13217322216617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6608661108348 + 6608661108349.

It is an arithmetic number, because the mean of its divisors is an integer number (6608661108349).

Almost surely, 2^{13217322216697} is an apocalyptic number.

It is an amenable number.

13217322216697 is a deficient number, since it is larger than the sum of its proper divisors (1).

13217322216697 is an equidigital number, since it uses as much as digits as its factorization.

13217322216697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 52.

The spelling of 13217322216697 in words is "thirteen trillion, two hundred seventeen billion, three hundred twenty-two million, two hundred sixteen thousand, six hundred ninety-seven".