12012013332 has 72 divisors (see below), whose sum is σ = 34867428960. Its totient is φ = 3448422720.

The previous prime is 12012013309. The next prime is 12012013337. The reversal of 12012013332 is 23331021021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012013337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790723 + ... + 805770.

Almost surely, 2^12012013332 is an apocalyptic number.

12012013332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012013332 is an abundant number, since it is smaller than the sum of its proper divisors (22855415628).

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

12012013332 is a wasteful number, since it uses less digits than its factorization.

12012013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596533 (or 1596528 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12012013332 its reverse (23331021021), we get a palindrome (35343034353).

The spelling of 12012013332 in words is "twelve billion, twelve million, thirteen thousand, three hundred thirty-two".