12166201 has 2 divisors, whose sum is σ = 12166202. Its totient is φ = 12166200.

The previous prime is 12166181. The next prime is 12166207. The reversal of 12166201 is 10266121.

12166201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9916201 + 2250000 = 3149^2 + 1500^2 .

It is a cyclic number.

It is not a de Polignac number, because 12166201 - 2⁷ = 12166073 is a prime.

It is not a weakly prime, because it can be changed into another prime (12166207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6083100 + 6083101.

It is an arithmetic number, because the mean of its divisors is an integer number (6083101).

Almost surely, 2^12166201 is an apocalyptic number.

It is an amenable number.

12166201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12166201 is an equidigital number, since it uses as much as digits as its factorization.

12166201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12166201 is about 3488.0081708620. The cubic root of 12166201 is about 229.9949652332.

It can be divided in two parts, 12166 and 201, that multiplied together give a triangular number (2445366 = T₂₂₁₁).

The spelling of 12166201 in words is "twelve million, one hundred sixty-six thousand, two hundred one".