112217209 has 8 divisors (see below), whose sum is σ = 122380160. Its totient is φ = 102272976.

The previous prime is 112217201. The next prime is 112217239. The reversal of 112217209 is 902712211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112217209 - 2³ = 112217201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112217201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53607 + ... + 55660.

It is an arithmetic number, because the mean of its divisors is an integer number (15297520).

Almost surely, 2^112217209 is an apocalyptic number.

It is an amenable number.

112217209 is a deficient number, since it is larger than the sum of its proper divisors (10162951).

112217209 is a wasteful number, since it uses less digits than its factorization.

112217209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109359.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 112217209 is about 10593.2624342079. The cubic root of 112217209 is about 482.3398614856.

The spelling of 112217209 in words is "one hundred twelve million, two hundred seventeen thousand, two hundred nine".