12012110000020 has 48 divisors (see below), whose sum is σ = 27262524553488. Its totient is φ = 4419456814080.

The previous prime is 12012109999997. The next prime is 12012110000041. The reversal of 12012110000020 is 2000001121021.

It can be written as a sum of positive squares in 8 ways, for example, as 175730316804 + 11836379683216 = 419202^2 + 3440404^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12012109999961 and 12012110000006.

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 15 ways as a sum of consecutive naturals, for example, 82134099 + ... + 82280218.

It is an arithmetic number, because the mean of its divisors is an integer number (567969261531).

Almost surely, 2^{12012110000020} is an apocalyptic number.

12012110000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012110000020 is an abundant number, since it is smaller than the sum of its proper divisors (15250414553468).

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

12012110000020 is a wasteful number, since it uses less digits than its factorization.

12012110000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164414620 (or 164414618 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12012110000020 its reverse (2000001121021), we get a palindrome (14012111121041).

The spelling of 12012110000020 in words is "twelve trillion, twelve billion, one hundred ten million, twenty", and thus it is an aban number.