12012220112012 has 24 divisors (see below), whose sum is σ = 21042613562880. Its totient is φ = 6000045359760.

The previous prime is 12012220111987. The next prime is 12012220112027. The reversal of 12012220112012 is 21021102221021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108445337 + ... + 108556047.

It is an arithmetic number, because the mean of its divisors is an integer number (876775565120).

Almost surely, 2^{12012220112012} is an apocalyptic number.

It is an amenable number.

12012220112012 is a deficient number, since it is larger than the sum of its proper divisors (9030393450868).

12012220112012 is a wasteful number, since it uses less digits than its factorization.

12012220112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137861 (or 137859 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012220112012 its reverse (21021102221021), we get a palindrome (33033322333033).

The spelling of 12012220112012 in words is "twelve trillion, twelve billion, two hundred twenty million, one hundred twelve thousand, twelve".