212100200112 has 20 divisors (see below), whose sum is σ = 547925517080. Its totient is φ = 70700066688.

The previous prime is 212100200111. The next prime is 212100200129. The reversal of 212100200112 is 211002001212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (212100200111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2209377037 + ... + 2209377132.

It is an arithmetic number, because the mean of its divisors is an integer number (27396275854).

Almost surely, 2^212100200112 is an apocalyptic number.

It is an amenable number.

212100200112 is an abundant number, since it is smaller than the sum of its proper divisors (335825316968).

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

212100200112 is a wasteful number, since it uses less digits than its factorization.

212100200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418754180 (or 4418754174 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212100200112 its reverse (211002001212), we get a palindrome (423102201324).

The spelling of 212100200112 in words is "two hundred twelve billion, one hundred million, two hundred thousand, one hundred twelve".