12231201132 has 72 divisors (see below), whose sum is σ = 32760815360. Its totient is φ = 3836872800.

The previous prime is 12231201097. The next prime is 12231201161. The reversal of 12231201132 is 23110213221.

It is a super-2 number, since 2×12231201132² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44073 + ... + 162495.

Almost surely, 2^12231201132 is an apocalyptic number.

12231201132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231201132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16380407680).

12231201132 is an abundant number, since it is smaller than the sum of its proper divisors (20529614228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12231201132 is a wasteful number, since it uses less digits than its factorization.

12231201132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118603 (or 118598 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12231201132 its reverse (23110213221), we get a palindrome (35341414353).

The spelling of 12231201132 in words is "twelve billion, two hundred thirty-one million, two hundred one thousand, one hundred thirty-two".