112121998807999 has 2 divisors, whose sum is σ = 112121998808000. Its totient is φ = 112121998807998.

The previous prime is 112121998807961. The next prime is 112121998808003. The reversal of 112121998807999 is 999708899121211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112121998807999 - 2¹¹ = 112121998805951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112121998807099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060999403999 + 56060999404000.

It is an arithmetic number, because the mean of its divisors is an integer number (56060999404000).

Almost surely, 2^{112121998807999} is an apocalyptic number.

112121998807999 is a deficient number, since it is larger than the sum of its proper divisors (1).

112121998807999 is an equidigital number, since it uses as much as digits as its factorization.

112121998807999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105815808, while the sum is 76.

The spelling of 112121998807999 in words is "one hundred twelve trillion, one hundred twenty-one billion, nine hundred ninety-eight million, eight hundred seven thousand, nine hundred ninety-nine".