2215912 has 16 divisors (see below), whose sum is σ = 4335840. Its totient is φ = 1059696.

The previous prime is 2215903. The next prime is 2215921. The reversal of 2215912 is 2195122.

It is an interprime number because it is at equal distance from previous prime (2215903) and next prime (2215921).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5838 + ... + 6205.

It is an arithmetic number, because the mean of its divisors is an integer number (270990).

2^2215912 is an apocalyptic number.

It is an amenable number.

2215912 is a deficient number, since it is larger than the sum of its proper divisors (2119928).

2215912 is a wasteful number, since it uses less digits than its factorization.

2215912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12072 (or 12068 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 2215912 is about 1488.5939674740. The cubic root of 2215912 is about 130.3719525159.

The spelling of 2215912 in words is "two million, two hundred fifteen thousand, nine hundred twelve".