112219999 has 2 divisors, whose sum is σ = 112220000. Its totient is φ = 112219998.

The previous prime is 112219997. The next prime is 112220021. The reversal of 112219999 is 999912211.

It is a weak prime.

It is an emirp because it is prime and its reverse (999912211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112219999 - 2¹ = 112219997 is a prime.

Together with 112219997, 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 (112219997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56109999 + 56110000.

It is an arithmetic number, because the mean of its divisors is an integer number (56110000).

Almost surely, 2^112219999 is an apocalyptic number.

112219999 is a deficient number, since it is larger than the sum of its proper divisors (1).

112219999 is an equidigital number, since it uses as much as digits as its factorization.

112219999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 43.

The square root of 112219999 is about 10593.3941208661. The cubic root of 112219999 is about 482.3438588435.

The spelling of 112219999 in words is "one hundred twelve million, two hundred nineteen thousand, nine hundred ninety-nine".