12000205 has 8 divisors (see below), whose sum is σ = 16457472. Its totient is φ = 8228688.

The previous prime is 12000133. The next prime is 12000239. The reversal of 12000205 is 50200021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12000205 - 2¹⁷ = 11869133 is a prime.

It is a Duffinian number.

12000205 is a modest number, since divided by 205 gives 120 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 12000191 and 12000200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171397 + ... + 171466.

It is an arithmetic number, because the mean of its divisors is an integer number (2057184).

Almost surely, 2^12000205 is an apocalyptic number.

It is an amenable number.

12000205 is a deficient number, since it is larger than the sum of its proper divisors (4457267).

12000205 is an equidigital number, since it uses as much as digits as its factorization.

12000205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342875.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 12000205 is about 3464.1312042127. The cubic root of 12000205 is about 228.9441522056.

Adding to 12000205 its reverse (50200021), we get a palindrome (62200226).

The spelling of 12000205 in words is "twelve million, two hundred five", and thus it is an aban number.