2213118 has 24 divisors (see below), whose sum is σ = 4926168. Its totient is φ = 717552.

The previous prime is 2213093. The next prime is 2213137. The reversal of 2213118 is 8113122.

Added to its reverse (8113122) it gives a triangular number (10326240 = T₄₅₄₄).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2213118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 996 + ... + 2327.

It is an arithmetic number, because the mean of its divisors is an integer number (205257).

2^2213118 is an apocalyptic number.

2213118 is an abundant number, since it is smaller than the sum of its proper divisors (2713050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2213118 is a wasteful number, since it uses less digits than its factorization.

2213118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368 (or 3365 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 2213118 is about 1487.6552019873. The cubic root of 2213118 is about 130.3171349903.

Adding to 2213118 its reverse (8113122), we get a triangular number (10326240 = T₄₅₄₄).

The spelling of 2213118 in words is "two million, two hundred thirteen thousand, one hundred eighteen".