12010010112 has 120 divisors (see below), whose sum is σ = 35150852880. Its totient is φ = 3946844160.

The previous prime is 12010010093. The next prime is 12010010113. The reversal of 12010010112 is 21101001021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12010010094 and 12010010103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010010113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308814 + ... + 345522.

It is an arithmetic number, because the mean of its divisors is an integer number (292923774).

Almost surely, 2^12010010112 is an apocalyptic number.

12010010112 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 12010010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17575426440).

12010010112 is an abundant number, since it is smaller than the sum of its proper divisors (23140842768).

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

12010010112 is an equidigital number, since it uses as much as digits as its factorization.

12010010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36804 (or 36785 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12010010112 its reverse (21101001021), we get a palindrome (33111011133).

Subtracting 12010010112 from its reverse (21101001021), we obtain a palindrome (9090990909).

The spelling of 12010010112 in words is "twelve billion, ten million, ten thousand, one hundred twelve".