211216616215 has 16 divisors (see below), whose sum is σ = 283974775200. Its totient is φ = 149460405120.

The previous prime is 211216616201. The next prime is 211216616239. The reversal of 211216616215 is 512616612112.

It is not a de Polignac number, because 211216616215 - 2²⁵ = 211183061783 is a prime.

It is a super-2 number, since 2×211216616215² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51893940 + ... + 51898009.

It is an arithmetic number, because the mean of its divisors is an integer number (17748423450).

Almost surely, 2^211216616215 is an apocalyptic number.

211216616215 is a deficient number, since it is larger than the sum of its proper divisors (72758158985).

211216616215 is a wasteful number, since it uses less digits than its factorization.

211216616215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103792002.

The product of its digits is 8640, while the sum is 34.

The spelling of 211216616215 in words is "two hundred eleven billion, two hundred sixteen million, six hundred sixteen thousand, two hundred fifteen".