12120331200 has 168 divisors, whose sum is σ = 39857306112. Its totient is φ = 3224570880.

The previous prime is 12120331199. The next prime is 12120331207. The reversal of 12120331200 is 213302121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12120331200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120331207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2238897 + ... + 2244303.

Almost surely, 2^12120331200 is an apocalyptic number.

12120331200 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 12120331200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19928653056).

12120331200 is an abundant number, since it is smaller than the sum of its proper divisors (27736974912).

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

12120331200 is a wasteful number, since it uses less digits than its factorization.

12120331200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5899 (or 5884 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12120331200 its reverse (213302121), we get a palindrome (12333633321).

The spelling of 12120331200 in words is "twelve billion, one hundred twenty million, three hundred thirty-one thousand, two hundred".