12311222132 has 24 divisors (see below), whose sum is σ = 23506321440. Its totient is φ = 5595276960.

The previous prime is 12311222123. The next prime is 12311222137. The reversal of 12311222132 is 23122211321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311222137) 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, 463919 + ... + 489737.

It is an arithmetic number, because the mean of its divisors is an integer number (979430060).

Almost surely, 2^12311222132 is an apocalyptic number.

It is an amenable number.

12311222132 is a deficient number, since it is larger than the sum of its proper divisors (11195099308).

12311222132 is a wasteful number, since it uses less digits than its factorization.

12311222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36671 (or 36669 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 12311222132 its reverse (23122211321), we get a palindrome (35433433453).

The spelling of 12311222132 in words is "twelve billion, three hundred eleven million, two hundred twenty-two thousand, one hundred thirty-two".