12231212132 has 24 divisors (see below), whose sum is σ = 21866423040. Its totient is φ = 5983738880.

The previous prime is 12231212117. The next prime is 12231212153. The reversal of 12231212132 is 23121213221.

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, 835169 + ... + 849687.

It is an arithmetic number, because the mean of its divisors is an integer number (911100960).

Almost surely, 2^12231212132 is an apocalyptic number.

It is an amenable number.

12231212132 is a deficient number, since it is larger than the sum of its proper divisors (9635210908).

12231212132 is a wasteful number, since it uses less digits than its factorization.

12231212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19051 (or 19049 counting only the distinct ones).

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

Adding to 12231212132 its reverse (23121213221), we get a palindrome (35352425353).

The spelling of 12231212132 in words is "twelve billion, two hundred thirty-one million, two hundred twelve thousand, one hundred thirty-two".