212102100200 has 48 divisors (see below), whose sum is σ = 495719343360. Its totient is φ = 84396632000.

The previous prime is 212102100163. The next prime is 212102100211. The reversal of 212102100200 is 2001201212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2738006 + ... + 2814405.

It is an arithmetic number, because the mean of its divisors is an integer number (10327486320).

Almost surely, 2^212102100200 is an apocalyptic number.

212102100200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102100200 is an abundant number, since it is smaller than the sum of its proper divisors (283617243160).

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

212102100200 is a wasteful number, since it uses less digits than its factorization.

212102100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5552618 (or 5552609 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 212102100200 its reverse (2001201212), we get a palindrome (214103301412).

The spelling of 212102100200 in words is "two hundred twelve billion, one hundred two million, one hundred thousand, two hundred".