12322240012 has 24 divisors (see below), whose sum is σ = 23481586800. Its totient is φ = 5635578816.

The previous prime is 12322239991. The next prime is 12322240019. The reversal of 12322240012 is 21004222321.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (12322240019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2793223 + ... + 2797630.

It is an arithmetic number, because the mean of its divisors is an integer number (978399450).

Almost surely, 2^12322240012 is an apocalyptic number.

It is an amenable number.

12322240012 is a deficient number, since it is larger than the sum of its proper divisors (11159346788).

12322240012 is a wasteful number, since it uses less digits than its factorization.

12322240012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5590905 (or 5590903 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12322240012 its reverse (21004222321), we get a palindrome (33326462333).

The spelling of 12322240012 in words is "twelve billion, three hundred twenty-two million, two hundred forty thousand, twelve".