10331221507889 has 2 divisors, whose sum is σ = 10331221507890. Its totient is φ = 10331221507888.

The previous prime is 10331221507853. The next prime is 10331221507951. The reversal of 10331221507889 is 98870512213301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9353149957264 + 978071550625 = 3058292^2 + 988975^2 .

It is an emirp because it is prime and its reverse (98870512213301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10331221507889 - 2³⁶ = 10262502031153 is a prime.

It is not a weakly prime, because it can be changed into another prime (10331221501889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5165610753944 + 5165610753945.

It is an arithmetic number, because the mean of its divisors is an integer number (5165610753945).

Almost surely, 2^{10331221507889} is an apocalyptic number.

It is an amenable number.

10331221507889 is a deficient number, since it is larger than the sum of its proper divisors (1).

10331221507889 is an equidigital number, since it uses as much as digits as its factorization.

10331221507889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 10331221507889 in words is "ten trillion, three hundred thirty-one billion, two hundred twenty-one million, five hundred seven thousand, eight hundred eighty-nine".