12213241 has 2 divisors, whose sum is σ = 12213242. Its totient is φ = 12213240.

The previous prime is 12213221. The next prime is 12213251. The reversal of 12213241 is 14231221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 5659641 = 2560^2 + 2379^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213241 - 2¹¹ = 12211193 is a prime.

It is not a weakly prime, because it can be changed into another prime (12213221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106620 + 6106621.

It is an arithmetic number, because the mean of its divisors is an integer number (6106621).

Almost surely, 2^12213241 is an apocalyptic number.

It is an amenable number.

12213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213241 is an equidigital number, since it uses as much as digits as its factorization.

12213241 is an evil number, because the sum of its binary digits is even.

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

The square root of 12213241 is about 3494.7447689352. The cubic root of 12213241 is about 230.2910053140.

Adding to 12213241 its reverse (14231221), we get a palindrome (26444462).

The spelling of 12213241 in words is "twelve million, two hundred thirteen thousand, two hundred forty-one".