12021296999 has 2 divisors, whose sum is σ = 12021297000. Its totient is φ = 12021296998.

The previous prime is 12021296993. The next prime is 12021297031. The reversal of 12021296999 is 99969212021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021296999 - 2⁸ = 12021296743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021296993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010648499 + 6010648500.

It is an arithmetic number, because the mean of its divisors is an integer number (6010648500).

Almost surely, 2^12021296999 is an apocalyptic number.

12021296999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021296999 is an equidigital number, since it uses as much as digits as its factorization.

12021296999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 50.

The spelling of 12021296999 in words is "twelve billion, twenty-one million, two hundred ninety-six thousand, nine hundred ninety-nine".