2216212 has 12 divisors (see below), whose sum is σ = 3904180. Its totient is φ = 1100736.

The previous prime is 2216197. The next prime is 2216213. The reversal of 2216212 is 2126122.

2216212 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 404496 + 1811716 = 636^2 + 1346^2 .

It is a congruent number.

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, 1137 + ... + 2392.

2^2216212 is an apocalyptic number.

It is an amenable number.

2216212 is a deficient number, since it is larger than the sum of its proper divisors (1687968).

2216212 is a wasteful number, since it uses less digits than its factorization.

2216212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3688 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 2216212 is about 1488.6947302923. The cubic root of 2216212 is about 130.3778356949.

The spelling of 2216212 in words is "two million, two hundred sixteen thousand, two hundred twelve".