2216206 has 4 divisors (see below), whose sum is σ = 3324312. Its totient is φ = 1108102.

The previous prime is 2216197. The next prime is 2216213. The reversal of 2216206 is 6026122.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554050 + ... + 554053.

It is an arithmetic number, because the mean of its divisors is an integer number (831078).

2^2216206 is an apocalyptic number.

2216206 is a deficient number, since it is larger than the sum of its proper divisors (1108106).

2216206 is a wasteful number, since it uses less digits than its factorization.

2216206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108105.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2216206 is about 1488.6927151028. The cubic root of 2216206 is about 130.3777180366.

The spelling of 2216206 in words is "two million, two hundred sixteen thousand, two hundred six".