12001332 has 24 divisors (see below), whose sum is σ = 32003776. Its totient is φ = 3428928.

The previous prime is 12001307. The next prime is 12001333. The reversal of 12001332 is 23310021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

12001332 is a modest number, since divided by 1332 gives 12 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001333) 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, 71353 + ... + 71520.

Almost surely, 2^12001332 is an apocalyptic number.

12001332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001332 is an abundant number, since it is smaller than the sum of its proper divisors (20002444).

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

12001332 is a wasteful number, since it uses less digits than its factorization.

12001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142887 (or 142885 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 12001332 is about 3464.2938674425. The cubic root of 12001332 is about 228.9513190827.

Adding to 12001332 its reverse (23310021), we get a palindrome (35311353).

The spelling of 12001332 in words is "twelve million, one thousand, three hundred thirty-two".