216112899 has 12 divisors (see below), whose sum is σ = 301225736. Its totient is φ = 137810112.

The previous prime is 216112877. The next prime is 216112921. The reversal of 216112899 is 998211612.

216112899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216112877) and next prime (216112921).

It is not a de Polignac number, because 216112899 - 2⁵ = 216112867 is a prime.

It is a super-2 number, since 2×216112899² = 93409570228368402, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (216112829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66502 + ... + 69675.

Almost surely, 2^216112899 is an apocalyptic number.

216112899 is a deficient number, since it is larger than the sum of its proper divisors (85112837).

216112899 is a wasteful number, since it uses less digits than its factorization.

216112899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136226 (or 136203 counting only the distinct ones).

The product of its digits is 15552, while the sum is 39.

The square root of 216112899 is about 14700.7788569178. The cubic root of 216112899 is about 600.1045179034.

The spelling of 216112899 in words is "two hundred sixteen million, one hundred twelve thousand, eight hundred ninety-nine".