212124200 has 24 divisors (see below), whose sum is σ = 493189230. Its totient is φ = 84849600.

The previous prime is 212124191. The next prime is 212124229. The reversal of 212124200 is 2421212.

It can be written as a sum of positive squares in 3 ways, for example, as 128913316 + 83210884 = 11354^2 + 9122^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 530111 + ... + 530510.

Almost surely, 2^212124200 is an apocalyptic number.

212124200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212124200 is an abundant number, since it is smaller than the sum of its proper divisors (281065030).

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

212124200 is a wasteful number, since it uses less digits than its factorization.

212124200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060637 (or 1060628 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 212124200 is about 14564.4841995863. The cubic root of 212124200 is about 596.3896150724.

Adding to 212124200 its reverse (2421212), we get a palindrome (214545412).

The spelling of 212124200 in words is "two hundred twelve million, one hundred twenty-four thousand, two hundred".