12002120000205 has 32 divisors (see below), whose sum is σ = 19231500847104. Its totient is φ = 6391762614336.

The previous prime is 12002120000203. The next prime is 12002120000219. The reversal of 12002120000205 is 50200002120021.

It is not a de Polignac number, because 12002120000205 - 2¹ = 12002120000203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002120000203) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 143108014 + ... + 143191856.

It is an arithmetic number, because the mean of its divisors is an integer number (600984401472).

Almost surely, 2^{12002120000205} is an apocalyptic number.

12002120000205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12002120000205 is a deficient number, since it is larger than the sum of its proper divisors (7229380846899).

12002120000205 is a wasteful number, since it uses less digits than its factorization.

12002120000205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97705.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 12002120000205 its reverse (50200002120021), we get a palindrome (62202122120226).

The spelling of 12002120000205 in words is "twelve trillion, two billion, one hundred twenty million, two hundred five", and thus it is an aban number.