12232311200 has 72 divisors (see below), whose sum is σ = 29942919468. Its totient is φ = 4879687680.

The previous prime is 12232311187. The next prime is 12232311253. The reversal of 12232311200 is 211323221.

It can be written as a sum of positive squares in 6 ways, for example, as 2468499856 + 9763811344 = 49684^2 + 98812^2 .

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 11 ways as a sum of consecutive naturals, for example, 277904 + ... + 318896.

Almost surely, 2^12232311200 is an apocalyptic number.

12232311200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12232311200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14971459734).

12232311200 is an abundant number, since it is smaller than the sum of its proper divisors (17710608268).

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

12232311200 is a wasteful number, since it uses less digits than its factorization.

12232311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41386 (or 41373 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12232311200 its reverse (211323221), we get a palindrome (12443634421).

The spelling of 12232311200 in words is "twelve billion, two hundred thirty-two million, three hundred eleven thousand, two hundred".