13221301009997 has 2 divisors, whose sum is σ = 13221301009998. Its totient is φ = 13221301009996.

The previous prime is 13221301009963. The next prime is 13221301010131. The reversal of 13221301009997 is 79990010312231.

13221301009997 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., 13211233095076 + 10067914921 = 3634726^2 + 100339^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221301009997 - 2¹⁴ = 13221300993613 is a prime.

It is a super-3 number, since 3×13221301009997³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221301009907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610650504998 + 6610650504999.

It is an arithmetic number, because the mean of its divisors is an integer number (6610650504999).

Almost surely, 2^{13221301009997} is an apocalyptic number.

It is an amenable number.

13221301009997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221301009997 is an equidigital number, since it uses as much as digits as its factorization.

13221301009997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 47.

The spelling of 13221301009997 in words is "thirteen trillion, two hundred twenty-one billion, three hundred one million, nine thousand, nine hundred ninety-seven".