2206215 has 24 divisors (see below), whose sum is σ = 4172688. Its totient is φ = 1069440.

The previous prime is 2206207. The next prime is 2206219. The reversal of 2206215 is 5126022.

It is not a de Polignac number, because 2206215 - 2³ = 2206207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1734 + ... + 2723.

It is an arithmetic number, because the mean of its divisors is an integer number (173862).

2^2206215 is an apocalyptic number.

2206215 is a deficient number, since it is larger than the sum of its proper divisors (1966473).

2206215 is a wasteful number, since it uses less digits than its factorization.

2206215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4476 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2206215 is about 1485.3332959306. Note that the first 3 decimals coincide. The cubic root of 2206215 is about 130.1815018989.

The spelling of 2206215 in words is "two million, two hundred six thousand, two hundred fifteen".