12201321324 has 24 divisors (see below), whose sum is σ = 28859748400. Its totient is φ = 4011393024.

The previous prime is 12201321299. The next prime is 12201321329. The reversal of 12201321324 is 42312310221.

12201321324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12201321324² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12201321324.

It is not an unprimeable number, because it can be changed into a prime (12201321329) 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 7 ways as a sum of consecutive naturals, for example, 6963349 + ... + 6965100.

Almost surely, 2^12201321324 is an apocalyptic number.

It is an amenable number.

12201321324 is an abundant number, since it is smaller than the sum of its proper divisors (16658427076).

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

12201321324 is a wasteful number, since it uses less digits than its factorization.

12201321324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13928529 (or 13928527 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12201321324 its reverse (42312310221), we get a palindrome (54513631545).

The spelling of 12201321324 in words is "twelve billion, two hundred one million, three hundred twenty-one thousand, three hundred twenty-four".