212031200100 has 144 divisors (see below), whose sum is σ = 615672913856. Its totient is φ = 56339712000.

The previous prime is 212031200077. The next prime is 212031200177. The reversal of 212031200100 is 1002130212.

212031200100 is digitally balanced in base 2, 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 (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160507440 + ... + 160508760.

Almost surely, 2^212031200100 is an apocalyptic number.

212031200100 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 212031200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307836456928).

212031200100 is an abundant number, since it is smaller than the sum of its proper divisors (403641713756).

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

212031200100 is a wasteful number, since it uses less digits than its factorization.

212031200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 212031200100 its reverse (1002130212), we get a palindrome (213033330312).

The spelling of 212031200100 in words is "two hundred twelve billion, thirty-one million, two hundred thousand, one hundred".