212012200 has 24 divisors (see below), whose sum is σ = 492928830. Its totient is φ = 84804800.

The previous prime is 212012197. The next prime is 212012209. The reversal of 212012200 is 2210212.

212012200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 115304644 + 96707556 = 10738^2 + 9834^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (212012209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 529831 + ... + 530230.

Almost surely, 2^212012200 is an apocalyptic number.

212012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012200 is an abundant number, since it is smaller than the sum of its proper divisors (280916630).

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

212012200 is a wasteful number, since it uses less digits than its factorization.

212012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060077 (or 1060068 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 212012200 is about 14560.6387222539. The cubic root of 212012200 is about 596.2846334999.

Adding to 212012200 its reverse (2210212), we get a palindrome (214222412).

It can be divided in two parts, 212012 and 200, that added together give a palindrome (212212).

The spelling of 212012200 in words is "two hundred twelve million, twelve thousand, two hundred".