3221118 has 12 divisors (see below), whose sum is σ = 6979128. Its totient is φ = 1073700.

The previous prime is 3221111. The next prime is 3221123. The reversal of 3221118 is 8111223.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 178951 = 3221118 / (3 + 2 + 2 + 1 + 1 + 1 + 8).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89458 + ... + 89493.

It is an arithmetic number, because the mean of its divisors is an integer number (581594).

Almost surely, 2^3221118 is an apocalyptic number.

3221118 is an abundant number, since it is smaller than the sum of its proper divisors (3758010).

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

3221118 is a wasteful number, since it uses less digits than its factorization.

3221118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178959 (or 178956 counting only the distinct ones).

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

The square root of 3221118 is about 1794.7473359780. The cubic root of 3221118 is about 147.6847135268.

The spelling of 3221118 in words is "three million, two hundred twenty-one thousand, one hundred eighteen".