2216218 has 8 divisors (see below), whose sum is σ = 3332448. Its totient is φ = 1105404.

The previous prime is 2216213. The next prime is 2216231. The reversal of 2216218 is 8126122.

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

It is not an unprimeable number, because it can be changed into a prime (2216213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96 + ... + 2107.

It is an arithmetic number, because the mean of its divisors is an integer number (416556).

2^2216218 is an apocalyptic number.

2216218 is a deficient number, since it is larger than the sum of its proper divisors (1116230).

2216218 is a wasteful number, since it uses less digits than its factorization.

2216218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708.

The product of its digits is 384, while the sum is 22.

The square root of 2216218 is about 1488.6967454791. The cubic root of 2216218 is about 130.3779533531.

The spelling of 2216218 in words is "two million, two hundred sixteen thousand, two hundred eighteen".