12122432312 has 32 divisors (see below), whose sum is σ = 22876369920. Its totient is φ = 6022145760.

The previous prime is 12122432297. The next prime is 12122432317. The reversal of 12122432312 is 21323422121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122432317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381523 + ... + 1390269.

It is an arithmetic number, because the mean of its divisors is an integer number (714886560).

Almost surely, 2^12122432312 is an apocalyptic number.

It is an amenable number.

12122432312 is a deficient number, since it is larger than the sum of its proper divisors (10753937608).

12122432312 is a wasteful number, since it uses less digits than its factorization.

12122432312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9851 (or 9847 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

Adding to 12122432312 its reverse (21323422121), we get a palindrome (33445854433).

The spelling of 12122432312 in words is "twelve billion, one hundred twenty-two million, four hundred thirty-two thousand, three hundred twelve".