12321130221144 has 48 divisors (see below), whose sum is σ = 33370025835120. Its totient is φ = 4107006711360.

The previous prime is 12321130221143. The next prime is 12321130221157. The reversal of 12321130221144 is 44112203112321.

12321130221144 is a `hidden beast` number, since 1 + 2 + 3 + 211 + 302 + 2 + 1 + 144 = 666.

12321130221144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321130221143) 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, 8050854 + ... + 9458250.

It is an arithmetic number, because the mean of its divisors is an integer number (695208871565).

Almost surely, 2^{12321130221144} is an apocalyptic number.

It is an amenable number.

12321130221144 is an abundant number, since it is smaller than the sum of its proper divisors (21048895613976).

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

12321130221144 is a wasteful number, since it uses less digits than its factorization.

12321130221144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529000 (or 1528993 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 12321130221144 its reverse (44112203112321), we get a palindrome (56433333333465).

The spelling of 12321130221144 in words is "twelve trillion, three hundred twenty-one billion, one hundred thirty million, two hundred twenty-one thousand, one hundred forty-four".