12210212200 has 48 divisors (see below), whose sum is σ = 29367679500. Its totient is φ = 4715665920.

The previous prime is 12210212197. The next prime is 12210212227. The reversal of 12210212200 is 221201221.

It is a happy number.

12210212200 is digitally balanced in base 2, 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 6 ways, for example, as 2288856964 + 9921355236 = 47842^2 + 99606^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1046805 + ... + 1058404.

Almost surely, 2^12210212200 is an apocalyptic number.

12210212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210212200 is an abundant number, since it is smaller than the sum of its proper divisors (17157467300).

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

12210212200 is a wasteful number, since it uses less digits than its factorization.

12210212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105254 (or 2105245 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12210212200 its reverse (221201221), we get a palindrome (12431413421).

It can be divided in two parts, 1221021 and 2200, that added together give a palindrome (1223221).

The spelling of 12210212200 in words is "twelve billion, two hundred ten million, two hundred twelve thousand, two hundred".