12110001012 has 96 divisors (see below), whose sum is σ = 32151974400. Its totient is φ = 3939981696.

The previous prime is 12110001011. The next prime is 12110001031. The reversal of 12110001012 is 21010001121.

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 = 12110000985 and 12110001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110001011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1971498 + ... + 1977630.

It is an arithmetic number, because the mean of its divisors is an integer number (334916400).

Almost surely, 2^12110001012 is an apocalyptic number.

12110001012 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 12110001012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16075987200).

12110001012 is an abundant number, since it is smaller than the sum of its proper divisors (20041973388).

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

12110001012 is a wasteful number, since it uses less digits than its factorization.

12110001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6582 (or 6574 counting only the distinct ones).

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

Adding to 12110001012 its reverse (21010001121), we get a palindrome (33120002133).

The spelling of 12110001012 in words is "twelve billion, one hundred ten million, one thousand, twelve".