2216118 has 8 divisors (see below), whose sum is σ = 4432248. Its totient is φ = 738704.

The previous prime is 2216117. The next prime is 2216143. The reversal of 2216118 is 8116122.

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

2216118 is an admirable number.

It is a super-2 number, since 2×2216118² = 9822357979848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2216094 and 2216103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216113) 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, 184671 + ... + 184682.

It is an arithmetic number, because the mean of its divisors is an integer number (554031).

2^2216118 is an apocalyptic number.

2216118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2216118 is a wasteful number, since it uses less digits than its factorization.

2216118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369358.

The product of its digits is 192, while the sum is 21.

The square root of 2216118 is about 1488.6631586763. The cubic root of 2216118 is about 130.3759923560.

The spelling of 2216118 in words is "two million, two hundred sixteen thousand, one hundred eighteen".