12231222132 has 12 divisors (see below), whose sum is σ = 28539518336. Its totient is φ = 4077074040.

The previous prime is 12231222103. The next prime is 12231222167. The reversal of 12231222132 is 23122213221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12231222099 and 12231222108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509634244 + ... + 509634267.

Almost surely, 2^12231222132 is an apocalyptic number.

12231222132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12231222132 is an abundant number, since it is smaller than the sum of its proper divisors (16308296204).

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

12231222132 is a wasteful number, since it uses less digits than its factorization.

12231222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019268518 (or 1019268516 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

Adding to 12231222132 its reverse (23122213221), we get a palindrome (35353435353).

The spelling of 12231222132 in words is "twelve billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred thirty-two".