13122227390497 has 2 divisors, whose sum is σ = 13122227390498. Its totient is φ = 13122227390496.

The previous prime is 13122227390407. The next prime is 13122227390513. The reversal of 13122227390497 is 79409372222131.

13122227390497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11801863227456 + 1320364163041 = 3435384^2 + 1149071^2 .

It is a cyclic number.

It is not a de Polignac number, because 13122227390497 - 2¹¹ = 13122227388449 is a prime.

It is a super-2 number, since 2×13122227390497² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13122227390407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561113695248 + 6561113695249.

It is an arithmetic number, because the mean of its divisors is an integer number (6561113695249).

Almost surely, 2^{13122227390497} is an apocalyptic number.

It is an amenable number.

13122227390497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122227390497 is an equidigital number, since it uses as much as digits as its factorization.

13122227390497 is an evil number, because the sum of its binary digits is even.

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

The spelling of 13122227390497 in words is "thirteen trillion, one hundred twenty-two billion, two hundred twenty-seven million, three hundred ninety thousand, four hundred ninety-seven".