12012121002122 has 32 divisors (see below), whose sum is σ = 19711034740224. Its totient is φ = 5465543846400.

The previous prime is 12012121002053. The next prime is 12012121002151. The reversal of 12012121002122 is 22120012121021.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12012121002122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3890579 + ... + 6257862.

It is an arithmetic number, because the mean of its divisors is an integer number (615969835632).

Almost surely, 2^{12012121002122} is an apocalyptic number.

12012121002122 is a deficient number, since it is larger than the sum of its proper divisors (7698913738102).

12012121002122 is a wasteful number, since it uses less digits than its factorization.

12012121002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10149614.

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

Adding to 12012121002122 its reverse (22120012121021), we get a palindrome (34132133123143).

The spelling of 12012121002122 in words is "twelve trillion, twelve billion, one hundred twenty-one million, two thousand, one hundred twenty-two".