12299999891 has 2 divisors, whose sum is σ = 12299999892. Its totient is φ = 12299999890.

The previous prime is 12299999861. The next prime is 12299999909. The reversal of 12299999891 is 19899999221.

12299999891 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12299999891 is a prime.

It is not a weakly prime, because it can be changed into another prime (12299999861) 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, 6149999945 + 6149999946.

It is an arithmetic number, because the mean of its divisors is an integer number (6149999946).

Almost surely, 2^12299999891 is an apocalyptic number.

12299999891 is a deficient number, since it is larger than the sum of its proper divisors (1).

12299999891 is an equidigital number, since it uses as much as digits as its factorization.

12299999891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17006112, while the sum is 68.

The spelling of 12299999891 in words is "twelve billion, two hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred ninety-one".