12443432221200 has 60 divisors (see below), whose sum is σ = 39860461219088. Its totient is φ = 3318248592000.

The previous prime is 12443432221193. The next prime is 12443432221201. The reversal of 12443432221200 is 212223434421.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12443432221201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5184762226 + ... + 5184764625.

Almost surely, 2^{12443432221200} is an apocalyptic number.

12443432221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12443432221200 is an abundant number, since it is smaller than the sum of its proper divisors (27417028997888).

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

12443432221200 is a wasteful number, since it uses less digits than its factorization.

12443432221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10369526872 (or 10369526861 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 12443432221200 its reverse (212223434421), we get a palindrome (12655655655621).

The spelling of 12443432221200 in words is "twelve trillion, four hundred forty-three billion, four hundred thirty-two million, two hundred twenty-one thousand, two hundred".