12111101120 has 56 divisors (see below), whose sum is σ = 28917162384. Its totient is φ = 4831405056.

The previous prime is 12111101113. The next prime is 12111101129. The reversal of 12111101120 is 2110111121.

It is not an unprimeable number, because it can be changed into a prime (12111101129) 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, 68627 + ... + 170093.

Almost surely, 2^12111101120 is an apocalyptic number.

12111101120 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 12111101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14458581192).

12111101120 is an abundant number, since it is smaller than the sum of its proper divisors (16806061264).

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

12111101120 is a wasteful number, since it uses less digits than its factorization.

12111101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101857 (or 101847 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12111101120 its reverse (2110111121), we get a palindrome (14221212241).

The spelling of 12111101120 in words is "twelve billion, one hundred eleven million, one hundred one thousand, one hundred twenty".