2216911 has 8 divisors (see below), whose sum is σ = 2293200. Its totient is φ = 2141760.

The previous prime is 2216909. The next prime is 2216917. The reversal of 2216911 is 1196122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2216911 - 2¹ = 2216909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216917) 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 7 ways as a sum of consecutive naturals, for example, 5505 + ... + 5893.

It is an arithmetic number, because the mean of its divisors is an integer number (286650).

2^2216911 is an apocalyptic number.

2216911 is a deficient number, since it is larger than the sum of its proper divisors (76289).

2216911 is a wasteful number, since it uses less digits than its factorization.

2216911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its digits is 216, while the sum is 22.

The square root of 2216911 is about 1488.9294812045. The cubic root of 2216911 is about 130.3915414426.

The spelling of 2216911 in words is "two million, two hundred sixteen thousand, nine hundred eleven".