12133221132 has 12 divisors (see below), whose sum is σ = 28310849336. Its totient is φ = 4044407040.

The previous prime is 12133221131. The next prime is 12133221193. The reversal of 12133221132 is 23112233121.

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

It is a super-2 number, since 2×12133221132² (a number of 21 digits) contains 22 as substring.

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 = 12133221099 and 12133221108.

It is not an unprimeable number, because it can be changed into a prime (12133221131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505550869 + ... + 505550892.

Almost surely, 2^12133221132 is an apocalyptic number.

12133221132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12133221132 is an abundant number, since it is smaller than the sum of its proper divisors (16177628204).

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

12133221132 is a wasteful number, since it uses less digits than its factorization.

12133221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011101768 (or 1011101766 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 12133221132 its reverse (23112233121), we get a palindrome (35245454253).

The spelling of 12133221132 in words is "twelve billion, one hundred thirty-three million, two hundred twenty-one thousand, one hundred thirty-two".