12232201 has 2 divisors, whose sum is σ = 12232202. Its totient is φ = 12232200.

The previous prime is 12232189. The next prime is 12232217. The reversal of 12232201 is 10223221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 121801 = 3480^2 + 349^2 .

It is an emirp because it is prime and its reverse (10223221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12232201 - 2⁵ = 12232169 is a prime.

It is not a weakly prime, because it can be changed into another prime (12232271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116100 + 6116101.

It is an arithmetic number, because the mean of its divisors is an integer number (6116101).

Almost surely, 2^12232201 is an apocalyptic number.

It is an amenable number.

12232201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232201 is an equidigital number, since it uses as much as digits as its factorization.

12232201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12232201 is about 3497.4563614147. The cubic root of 12232201 is about 230.4101126545.

Adding to 12232201 its reverse (10223221), we get a palindrome (22455422).

It can be divided in two parts, 1223220 and 1, that added together give a palindrome (1223221).

The spelling of 12232201 in words is "twelve million, two hundred thirty-two thousand, two hundred one".