12012012021012 has 48 divisors (see below), whose sum is σ = 28255991894592. Its totient is φ = 3971468067840.

The previous prime is 12012012021011. The next prime is 12012012021101. The reversal of 12012012021012 is 21012021021021.

12012012021012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12012012020982 and 12012012021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012012021011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276518 + ... + 5064930.

It is an arithmetic number, because the mean of its divisors is an integer number (588666497804).

Almost surely, 2^{12012012021012} is an apocalyptic number.

12012012021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012012021012 is an abundant number, since it is smaller than the sum of its proper divisors (16243979873580).

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

12012012021012 is a wasteful number, since it uses less digits than its factorization.

12012012021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790568 (or 3790566 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12012012021012 its reverse (21012021021021), we get a palindrome (33024033042033).

Subtracting 12012012021012 from its reverse (21012021021021), we obtain a palindrome (9000009000009).

The spelling of 12012012021012 in words is "twelve trillion, twelve billion, twelve million, twenty-one thousand, twelve".