12011321213200 has 30 divisors (see below), whose sum is σ = 28857199215674. Its totient is φ = 4804528485120.

The previous prime is 12011321213197. The next prime is 12011321213201. The reversal of 12011321213200 is 231212311021.

It can be written as a sum of positive squares in 3 ways, for example, as 2761353239824 + 9249967973376 = 1661732^2 + 3041376^2 .

It is not an unprimeable number, because it can be changed into a prime (12011321213201) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 15014151117 + ... + 15014151916.

Almost surely, 2^{12011321213200} is an apocalyptic number.

12011321213200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011321213200 is an abundant number, since it is smaller than the sum of its proper divisors (16845878002474).

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

12011321213200 is a wasteful number, since it uses less digits than its factorization.

12011321213200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30028303051 (or 30028303040 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12011321213200 its reverse (231212311021), we get a palindrome (12242533524221).

The spelling of 12011321213200 in words is "twelve trillion, eleven billion, three hundred twenty-one million, two hundred thirteen thousand, two hundred".