2217215 has 32 divisors (see below), whose sum is σ = 3580416. Its totient is φ = 1272960.

The previous prime is 2217211. The next prime is 2217217. The reversal of 2217215 is 5127122.

It is not a de Polignac number, because 2217215 - 2² = 2217211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4784 + ... + 5226.

It is an arithmetic number, because the mean of its divisors is an integer number (111888).

2^2217215 is an apocalyptic number.

2217215 is a deficient number, since it is larger than the sum of its proper divisors (1363201).

2217215 is a wasteful number, since it uses less digits than its factorization.

2217215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its digits is 280, while the sum is 20.

The square root of 2217215 is about 1489.0315644740. The cubic root of 2217215 is about 130.3975012694.

The spelling of 2217215 in words is "two million, two hundred seventeen thousand, two hundred fifteen".