216271100 has 36 divisors (see below), whose sum is σ = 471324000. Its totient is φ = 86136960.

The previous prime is 216271087. The next prime is 216271117. The reversal of 216271100 is 1172612.

216271100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 19376 + ... + 28424.

Almost surely, 2^216271100 is an apocalyptic number.

216271100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216271100 is an abundant number, since it is smaller than the sum of its proper divisors (255052900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216271100 is a wasteful number, since it uses less digits than its factorization.

216271100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9302 (or 9295 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 216271100 is about 14706.1585738765. The cubic root of 216271100 is about 600.2509135745.

The spelling of 216271100 in words is "two hundred sixteen million, two hundred seventy-one thousand, one hundred".