12132200 has 24 divisors (see below), whose sum is σ = 28207830. Its totient is φ = 4852800.

The previous prime is 12132151. The next prime is 12132217. The reversal of 12132200 is 223121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6832996 + 5299204 = 2614^2 + 2302^2 .

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 5 ways as a sum of consecutive naturals, for example, 30131 + ... + 30530.

Almost surely, 2^12132200 is an apocalyptic number.

12132200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12132200 is an abundant number, since it is smaller than the sum of its proper divisors (16075630).

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

12132200 is a wasteful number, since it uses less digits than its factorization.

12132200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60677 (or 60668 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12132200 is about 3483.1307756098. The cubic root of 12132200 is about 229.7805089408.

Adding to 12132200 its reverse (223121), we get a palindrome (12355321).

The spelling of 12132200 in words is "twelve million, one hundred thirty-two thousand, two hundred".