2216685335217 has 8 divisors (see below), whose sum is σ = 2955635877696. Its totient is φ = 1477762508112.

The previous prime is 2216685335203. The next prime is 2216685335297. The reversal of 2216685335217 is 7125335866122.

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

It is not a de Polignac number, because 2216685335217 - 2⁸ = 2216685334961 is a prime.

It is a super-2 number, since 2×2216685335217² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2216685335217.

It is not an unprimeable number, because it can be changed into a prime (2216685335297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6741498 + ... + 7062659.

It is an arithmetic number, because the mean of its divisors is an integer number (369454484712).

Almost surely, 2^{2216685335217} is an apocalyptic number.

It is an amenable number.

2216685335217 is a deficient number, since it is larger than the sum of its proper divisors (738950542479).

2216685335217 is a wasteful number, since it uses less digits than its factorization.

2216685335217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13857687.

The product of its digits is 3628800, while the sum is 51.

The spelling of 2216685335217 in words is "two trillion, two hundred sixteen billion, six hundred eighty-five million, three hundred thirty-five thousand, two hundred seventeen".