12322320212 has 24 divisors (see below), whose sum is σ = 21742124040. Its totient is φ = 6110432640.

The previous prime is 12322320167. The next prime is 12322320221. The reversal of 12322320212 is 21202322321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3462616336 + 8859703876 = 58844^2 + 94126^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321614 + ... + 357882.

It is an arithmetic number, because the mean of its divisors is an integer number (905921835).

Almost surely, 2^12322320212 is an apocalyptic number.

It is an amenable number.

12322320212 is a deficient number, since it is larger than the sum of its proper divisors (9419803828).

12322320212 is a wasteful number, since it uses less digits than its factorization.

12322320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36971 (or 36969 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12322320212 its reverse (21202322321), we get a palindrome (33524642533).

The spelling of 12322320212 in words is "twelve billion, three hundred twenty-two million, three hundred twenty thousand, two hundred twelve".