112211217 has 16 divisors (see below), whose sum is σ = 166944000. Its totient is φ = 74490192.

The previous prime is 112211189. The next prime is 112211243. The reversal of 112211217 is 712112211.

It is not a de Polignac number, because 112211217 - 2¹⁵ = 112178449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112211217.

It is not an unprimeable number, because it can be changed into a prime (112211117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2242 + ... + 15147.

It is an arithmetic number, because the mean of its divisors is an integer number (10434000).

Almost surely, 2^112211217 is an apocalyptic number.

It is an amenable number.

112211217 is a deficient number, since it is larger than the sum of its proper divisors (54732783).

112211217 is a wasteful number, since it uses less digits than its factorization.

112211217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17637 (or 17631 counting only the distinct ones).

The product of its digits is 56, while the sum is 18.

The square root of 112211217 is about 10592.9796091562. The cubic root of 112211217 is about 482.3312762548.

Adding to 112211217 its reverse (712112211), we get a palindrome (824323428).

The spelling of 112211217 in words is "one hundred twelve million, two hundred eleven thousand, two hundred seventeen".