12012120121012 has 24 divisors (see below), whose sum is σ = 24281183989440. Its totient is φ = 5138874917760.

The previous prime is 12012120120971. The next prime is 12012120121073. The reversal of 12012120121012 is 21012102121021.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8029491312 + ... + 8029492807.

It is an arithmetic number, because the mean of its divisors is an integer number (1011715999560).

Almost surely, 2^{12012120121012} is an apocalyptic number.

It is an amenable number.

12012120121012 is an abundant number, since it is smaller than the sum of its proper divisors (12269063868428).

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

12012120121012 is a wasteful number, since it uses less digits than its factorization.

12012120121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16058984151 (or 16058984149 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12012120121012 its reverse (21012102121021), we get a palindrome (33024222242033).

Subtracting 12012120121012 from its reverse (21012102121021), we obtain a square (8999982000009 = 2999997²).

The spelling of 12012120121012 in words is "twelve trillion, twelve billion, one hundred twenty million, one hundred twenty-one thousand, twelve".