211712899100 has 72 divisors (see below), whose sum is σ = 465954343680. Its totient is φ = 83481338880.

The previous prime is 211712899063. The next prime is 211712899109. The reversal of 211712899100 is 1998217112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211712899109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16338224 + ... + 16351176.

Almost surely, 2^211712899100 is an apocalyptic number.

211712899100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211712899100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232977171840).

211712899100 is an abundant number, since it is smaller than the sum of its proper divisors (254241444580).

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

211712899100 is a wasteful number, since it uses less digits than its factorization.

211712899100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15279 (or 15272 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 41.

The spelling of 211712899100 in words is "two hundred eleven billion, seven hundred twelve million, eight hundred ninety-nine thousand, one hundred".