12406201 has 4 divisors (see below), whose sum is σ = 12413412. Its totient is φ = 12398992.

The previous prime is 12406193. The next prime is 12406213. The reversal of 12406201 is 10260421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10260421 = 157 ⋅65353.

It can be written as a sum of positive squares in 2 ways, for example, as 3097600 + 9308601 = 1760^2 + 3051^2 .

It is a cyclic number.

It is not a de Polignac number, because 12406201 - 2³ = 12406193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12406501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (3103353).

Almost surely, 2^12406201 is an apocalyptic number.

It is an amenable number.

12406201 is a deficient number, since it is larger than the sum of its proper divisors (7211).

12406201 is an equidigital number, since it uses as much as digits as its factorization.

12406201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7210.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12406201 is about 3522.2437451148. The cubic root of 12406201 is about 231.4974817291.

Adding to 12406201 its reverse (10260421), we get a palindrome (22666622).

The spelling of 12406201 in words is "twelve million, four hundred six thousand, two hundred one".