12066205 has 4 divisors (see below), whose sum is σ = 14479452. Its totient is φ = 9652960.

The previous prime is 12066203. The next prime is 12066221. The reversal of 12066205 is 50266021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50266021 = 13 ⋅3866617.

It can be written as a sum of positive squares in 2 ways, for example, as 7584516 + 4481689 = 2754^2 + 2117^2 .

It is not a de Polignac number, because 12066205 - 2¹ = 12066203 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206616 + ... + 1206625.

It is an arithmetic number, because the mean of its divisors is an integer number (3619863).

Almost surely, 2^12066205 is an apocalyptic number.

It is an amenable number.

12066205 is a deficient number, since it is larger than the sum of its proper divisors (2413247).

12066205 is an equidigital number, since it uses as much as digits as its factorization.

12066205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413246.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 12066205 is about 3473.6443398828. The cubic root of 12066205 is about 229.3631088431.

The spelling of 12066205 in words is "twelve million, sixty-six thousand, two hundred five".