111072217 has 4 divisors (see below), whose sum is σ = 111180160. Its totient is φ = 110964276.

The previous prime is 111072191. The next prime is 111072229. The reversal of 111072217 is 712270111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111072217 - 2¹⁵ = 111039449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111072257) 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 in 3 ways as a sum of consecutive naturals, for example, 52413 + ... + 54490.

It is an arithmetic number, because the mean of its divisors is an integer number (27795040).

Almost surely, 2^111072217 is an apocalyptic number.

It is an amenable number.

111072217 is a deficient number, since it is larger than the sum of its proper divisors (107943).

111072217 is a wasteful number, since it uses less digits than its factorization.

111072217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107942.

The product of its (nonzero) digits is 196, while the sum is 22.

The square root of 111072217 is about 10539.0804627349. The cubic root of 111072217 is about 480.6937552075.

The spelling of 111072217 in words is "one hundred eleven million, seventy-two thousand, two hundred seventeen".