12341221 has 2 divisors, whose sum is σ = 12341222. Its totient is φ = 12341220.

The previous prime is 12341191. The next prime is 12341237. The reversal of 12341221 is 12214321.

It is an a-pointer prime, because the next prime (12341237) can be obtained adding 12341221 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12173121 + 168100 = 3489^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 12341221 - 2¹⁵ = 12308453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12341195 and 12341204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12341261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170610 + 6170611.

It is an arithmetic number, because the mean of its divisors is an integer number (6170611).

Almost surely, 2^12341221 is an apocalyptic number.

It is an amenable number.

12341221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12341221 is an equidigital number, since it uses as much as digits as its factorization.

12341221 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12341221 is about 3513.0074010739. The cubic root of 12341221 is about 231.0926023163.

Adding to 12341221 its reverse (12214321), we get a palindrome (24555542).

The spelling of 12341221 in words is "twelve million, three hundred forty-one thousand, two hundred twenty-one".