12012000000020 has 12 divisors (see below), whose sum is σ = 25225200000084. Its totient is φ = 4804800000000.

The previous prime is 12011999999999. The next prime is 12012000000031. The reversal of 12012000000020 is 2000000021021.

12012000000020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4616232725764 + 7395767274256 = 2148542^2 + 2719516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12011999999944 and 12012000000007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300299999981 + ... + 300300000020.

It is an arithmetic number, because the mean of its divisors is an integer number (2102100000007).

Almost surely, 2^{12012000000020} is an apocalyptic number.

12012000000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012000000020 is an abundant number, since it is smaller than the sum of its proper divisors (13213200000064).

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

12012000000020 is a wasteful number, since it uses less digits than its factorization.

12012000000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600600000010 (or 600600000008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 12012000000020 its reverse (2000000021021), we get a palindrome (14012000021041).

The spelling of 12012000000020 in words is "twelve trillion, twelve billion, twenty", and thus it is an aban number and an uban number.