12122312999 has 2 divisors, whose sum is σ = 12122313000. Its totient is φ = 12122312998.

The previous prime is 12122312971. The next prime is 12122313017. The reversal of 12122312999 is 99921322121.

12122312999 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 not a de Polignac number, because 12122312999 - 2¹⁶ = 12122247463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122312899) 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, 6061156499 + 6061156500.

It is an arithmetic number, because the mean of its divisors is an integer number (6061156500).

Almost surely, 2^12122312999 is an apocalyptic number.

12122312999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122312999 is an equidigital number, since it uses as much as digits as its factorization.

12122312999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 41.

The spelling of 12122312999 in words is "twelve billion, one hundred twenty-two million, three hundred twelve thousand, nine hundred ninety-nine".