212123110200 has 96 divisors (see below), whose sum is σ = 661024834560. Its totient is φ = 56269974400.

The previous prime is 212123110193. The next prime is 212123110201. The reversal of 212123110200 is 2011321212.

212123110200 is digitally balanced in base 3, 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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212123110200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123110201) 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, 810894 + ... + 1040093.

It is an arithmetic number, because the mean of its divisors is an integer number (6885675360).

Almost surely, 2^212123110200 is an apocalyptic number.

212123110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212123110200 is an abundant number, since it is smaller than the sum of its proper divisors (448901724360).

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

212123110200 is a wasteful number, since it uses less digits than its factorization.

212123110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851197 (or 1851188 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212123110200 its reverse (2011321212), we get a palindrome (214134431412).

The spelling of 212123110200 in words is "two hundred twelve billion, one hundred twenty-three million, one hundred ten thousand, two hundred".