12197104009 has 2 divisors, whose sum is σ = 12197104010. Its totient is φ = 12197104008.

The previous prime is 12197104001. The next prime is 12197104061. The reversal of 12197104009 is 90040179121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9476438409 + 2720665600 = 97347^2 + 52160^2 .

It is a cyclic number.

It is not a de Polignac number, because 12197104009 - 2³ = 12197104001 is a prime.

It is not a weakly prime, because it can be changed into another prime (12197104001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6098552004 + 6098552005.

It is an arithmetic number, because the mean of its divisors is an integer number (6098552005).

Almost surely, 2^12197104009 is an apocalyptic number.

It is an amenable number.

12197104009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12197104009 is an equidigital number, since it uses as much as digits as its factorization.

12197104009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 12197104009 in words is "twelve billion, one hundred ninety-seven million, one hundred four thousand, nine".