12012304122 has 96 divisors (see below), whose sum is σ = 32484291840. Its totient is φ = 3123429120.

The previous prime is 12012304067. The next prime is 12012304147. The reversal of 12012304122 is 22140321021.

It is a happy number.

12012304122 is a `hidden beast` number, since 1 + 20 + 1 + 230 + 412 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12012304095 and 12012304104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64654 + ... + 167942.

It is an arithmetic number, because the mean of its divisors is an integer number (338378040).

Almost surely, 2^12012304122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012304122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16242145920).

12012304122 is an abundant number, since it is smaller than the sum of its proper divisors (20471987718).

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

12012304122 is a wasteful number, since it uses less digits than its factorization.

12012304122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103388 (or 103385 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12012304122 its reverse (22140321021), we get a palindrome (34152625143).

The spelling of 12012304122 in words is "twelve billion, twelve million, three hundred four thousand, one hundred twenty-two".