12012021122012 has 12 divisors (see below), whose sum is σ = 21021130645536. Its totient is φ = 6005983794720.

The previous prime is 12012021121979. The next prime is 12012021122051. The reversal of 12012021122012 is 21022112021021.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5664308 + ... + 7490555.

It is an arithmetic number, because the mean of its divisors is an integer number (1751760887128).

Almost surely, 2^{12012021122012} is an apocalyptic number.

It is an amenable number.

12012021122012 is a deficient number, since it is larger than the sum of its proper divisors (9009109523524).

12012021122012 is a wasteful number, since it uses less digits than its factorization.

12012021122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13383148 (or 13383146 counting only the distinct ones).

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

Adding to 12012021122012 its reverse (21022112021021), we get a palindrome (33034133143033).

The spelling of 12012021122012 in words is "twelve trillion, twelve billion, twenty-one million, one hundred twenty-two thousand, twelve".