2215611 has 12 divisors (see below), whose sum is σ = 3221088. Its totient is φ = 1467504.

The previous prime is 2215583. The next prime is 2215639. The reversal of 2215611 is 1165122.

It is an interprime number because it is at equal distance from previous prime (2215583) and next prime (2215639).

It is not a de Polignac number, because 2215611 - 2⁶ = 2215547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2215651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 846 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (268424).

2^2215611 is an apocalyptic number.

2215611 is a deficient number, since it is larger than the sum of its proper divisors (1005477).

2215611 is a wasteful number, since it uses less digits than its factorization.

2215611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602 (or 1599 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 2215611 is about 1488.4928619244. The cubic root of 2215611 is about 130.3660491927.

It can be divided in two parts, 221 and 5611, that added together give a cube (5832 = 18³).

The spelling of 2215611 in words is "two million, two hundred fifteen thousand, six hundred eleven".