12111112332 has 96 divisors (see below), whose sum is σ = 34275225600. Its totient is φ = 3667723200.

The previous prime is 12111112313. The next prime is 12111112361. The reversal of 12111112332 is 23321111121.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3418482 + ... + 3422022.

It is an arithmetic number, because the mean of its divisors is an integer number (357033600).

Almost surely, 2^12111112332 is an apocalyptic number.

12111112332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12111112332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17137612800).

12111112332 is an abundant number, since it is smaller than the sum of its proper divisors (22164113268).

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

12111112332 is a wasteful number, since it uses less digits than its factorization.

12111112332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444 (or 6436 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 12111112332 its reverse (23321111121), we get a palindrome (35432223453).

The spelling of 12111112332 in words is "twelve billion, one hundred eleven million, one hundred twelve thousand, three hundred thirty-two".