212031300 has 72 divisors (see below), whose sum is σ = 660679936. Its totient is φ = 52191360.

The previous prime is 212031283. The next prime is 212031311. The reversal of 212031300 is 3130212.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23284 + ... + 31083.

Almost surely, 2^212031300 is an apocalyptic number.

212031300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212031300 is an abundant number, since it is smaller than the sum of its proper divisors (448648636).

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

212031300 is a wasteful number, since it uses less digits than its factorization.

212031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54397 (or 54390 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 212031300 is about 14561.2945853039. The cubic root of 212031300 is about 596.3025392219.

Adding to 212031300 its reverse (3130212), we get a palindrome (215161512).

The spelling of 212031300 in words is "two hundred twelve million, thirty-one thousand, three hundred".