12112000000 has 154 divisors (see below), whose sum is σ = 30304807406. Its totient is φ = 4838400000.

The previous prime is 12111999989. The next prime is 12112000001. The reversal of 12112000000 is 21121.

It can be written as a sum of positive squares in 7 ways, for example, as 12103520256 + 8479744 = 110016^2 + 2912^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112000001) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 15999622 + ... + 16000378.

Almost surely, 2^12112000000 is an apocalyptic number.

12112000000 is a gapful number since it is divisible by the number (10) 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 12112000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15152403703).

12112000000 is an abundant number, since it is smaller than the sum of its proper divisors (18192807406).

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

12112000000 is an frugal number, since it uses more digits than its factorization.

12112000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 12112000000 its reverse (21121), we get a palindrome (12112021121).

The spelling of 12112000000 in words is "twelve billion, one hundred twelve million", and thus it is an aban number.