12132112240 has 20 divisors (see below), whose sum is σ = 28207161144. Its totient is φ = 4852844864.

The previous prime is 12132112231. The next prime is 12132112253. The reversal of 12132112240 is 4221123121.

It is a tau number, because it is divible by the number of its divisors (20).

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, 75825622 + ... + 75825781.

Almost surely, 2^12132112240 is an apocalyptic number.

12132112240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12132112240 is an abundant number, since it is smaller than the sum of its proper divisors (16075048904).

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

12132112240 is a wasteful number, since it uses less digits than its factorization.

12132112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151651416 (or 151651410 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12132112240 its reverse (4221123121), we get a palindrome (16353235361).

The spelling of 12132112240 in words is "twelve billion, one hundred thirty-two million, one hundred twelve thousand, two hundred forty".