216022271700 has 72 divisors (see below), whose sum is σ = 625151862720. Its totient is φ = 57594195200.

The previous prime is 216022271683. The next prime is 216022271719. The reversal of 216022271700 is 7172220612.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1453441 + ... + 1595159.

It is an arithmetic number, because the mean of its divisors is an integer number (8682664760).

Almost surely, 2^216022271700 is an apocalyptic number.

216022271700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216022271700 is an abundant number, since it is smaller than the sum of its proper divisors (409129591020).

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

216022271700 is a wasteful number, since it uses less digits than its factorization.

216022271700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146817 (or 146810 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The spelling of 216022271700 in words is "two hundred sixteen billion, twenty-two million, two hundred seventy-one thousand, seven hundred".