13321221020969 has 2 divisors, whose sum is σ = 13321221020970. Its totient is φ = 13321221020968.

The previous prime is 13321221020953. The next prime is 13321221021001. The reversal of 13321221020969 is 96902012212331.

13321221020969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12730302882025 + 590918138944 = 3567955^2 + 768712^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321221020969 - 2⁴ = 13321221020953 is a prime.

It is a super-2 number, since 2×13321221020969² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13321221020929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660610510484 + 6660610510485.

It is an arithmetic number, because the mean of its divisors is an integer number (6660610510485).

Almost surely, 2^{13321221020969} is an apocalyptic number.

It is an amenable number.

13321221020969 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321221020969 is an equidigital number, since it uses as much as digits as its factorization.

13321221020969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 13321221020969 in words is "thirteen trillion, three hundred twenty-one billion, two hundred twenty-one million, twenty thousand, nine hundred sixty-nine".