212321230200 has 144 divisors (see below), whose sum is σ = 721057755600. Its totient is φ = 55982784000.

The previous prime is 212321230189. The next prime is 212321230217. The reversal of 212321230200 is 2032123212.

212321230200 is a `hidden beast` number, since 2 + 1 + 232 + 1 + 230 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 502476 + ... + 822875.

It is an arithmetic number, because the mean of its divisors is an integer number (5007345525).

Almost surely, 2^212321230200 is an apocalyptic number.

212321230200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212321230200 is an abundant number, since it is smaller than the sum of its proper divisors (508736525400).

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

212321230200 is a wasteful number, since it uses less digits than its factorization.

212321230200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325462 (or 1325450 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212321230200 its reverse (2032123212), we get a palindrome (214353353412).

The spelling of 212321230200 in words is "two hundred twelve billion, three hundred twenty-one million, two hundred thirty thousand, two hundred".