2217880216 has 16 divisors (see below), whose sum is σ = 4160193840. Its totient is φ = 1108495200.

The previous prime is 2217880211. The next prime is 2217880219. The reversal of 2217880216 is 6120887122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217880211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33931 + ... + 74746.

It is an arithmetic number, because the mean of its divisors is an integer number (260012115).

Almost surely, 2^2217880216 is an apocalyptic number.

It is an amenable number.

2217880216 is a deficient number, since it is larger than the sum of its proper divisors (1942313624).

2217880216 is a wasteful number, since it uses less digits than its factorization.

2217880216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111234 (or 111230 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 2217880216 is about 47094.3756302172. The cubic root of 2217880216 is about 1304.1054072521.

The spelling of 2217880216 in words is "two billion, two hundred seventeen million, eight hundred eighty thousand, two hundred sixteen".