112121009999 has 2 divisors, whose sum is σ = 112121010000. Its totient is φ = 112121009998.

The previous prime is 112121009977. The next prime is 112121010017. The reversal of 112121009999 is 999900121211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112121009999 - 2⁸ = 112121009743 is a prime.

It is a super-2 number, since 2×112121009999² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112121009599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060504999 + 56060505000.

It is an arithmetic number, because the mean of its divisors is an integer number (56060505000).

Almost surely, 2^112121009999 is an apocalyptic number.

112121009999 is a deficient number, since it is larger than the sum of its proper divisors (1).

112121009999 is an equidigital number, since it uses as much as digits as its factorization.

112121009999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 44.

The spelling of 112121009999 in words is "one hundred twelve billion, one hundred twenty-one million, nine thousand, nine hundred ninety-nine".