112021999 has 2 divisors, whose sum is σ = 112022000. Its totient is φ = 112021998.

The previous prime is 112021997. The next prime is 112022011. The reversal of 112021999 is 999120211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112021999 - 2¹ = 112021997 is a prime.

Together with 112021997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112021997) 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, 56010999 + 56011000.

It is an arithmetic number, because the mean of its divisors is an integer number (56011000).

Almost surely, 2^112021999 is an apocalyptic number.

112021999 is a deficient number, since it is larger than the sum of its proper divisors (1).

112021999 is an equidigital number, since it uses as much as digits as its factorization.

112021999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 112021999 is about 10584.0445482812. The cubic root of 112021999 is about 482.0600107211.

The spelling of 112021999 in words is "one hundred twelve million, twenty-one thousand, nine hundred ninety-nine".