12299999909 has 2 divisors, whose sum is σ = 12299999910. Its totient is φ = 12299999908.

The previous prime is 12299999891. The next prime is 12299999917. The reversal of 12299999909 is 90999999221.

12299999909 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., 11796132100 + 503867809 = 108610^2 + 22447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12299999909 is a prime.

It is a super-2 number, since 2×12299999909² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12299999939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6149999954 + 6149999955.

It is an arithmetic number, because the mean of its divisors is an integer number (6149999955).

Almost surely, 2^12299999909 is an apocalyptic number.

It is an amenable number.

12299999909 is a deficient number, since it is larger than the sum of its proper divisors (1).

12299999909 is an equidigital number, since it uses as much as digits as its factorization.

12299999909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19131876, while the sum is 68.

The spelling of 12299999909 in words is "twelve billion, two hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred nine".