13353521221889 has 2 divisors, whose sum is σ = 13353521221890. Its totient is φ = 13353521221888.

The previous prime is 13353521221829. The next prime is 13353521221907. The reversal of 13353521221889 is 98812212535331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9075656331889 + 4277864890000 = 3012583^2 + 2068300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13353521221889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13353521221889.

It is not a weakly prime, because it can be changed into another prime (13353521221829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6676760610944 + 6676760610945.

It is an arithmetic number, because the mean of its divisors is an integer number (6676760610945).

Almost surely, 2^{13353521221889} is an apocalyptic number.

It is an amenable number.

13353521221889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13353521221889 is an equidigital number, since it uses as much as digits as its factorization.

13353521221889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 53.

The spelling of 13353521221889 in words is "thirteen trillion, three hundred fifty-three billion, five hundred twenty-one million, two hundred twenty-one thousand, eight hundred eighty-nine".