12221203 has 2 divisors, whose sum is σ = 12221204. Its totient is φ = 12221202.

The previous prime is 12221197. The next prime is 12221207. The reversal of 12221203 is 30212221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12221203 - 2⁵ = 12221171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110601 + 6110602.

It is an arithmetic number, because the mean of its divisors is an integer number (6110602).

Almost surely, 2^12221203 is an apocalyptic number.

12221203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221203 is an equidigital number, since it uses as much as digits as its factorization.

12221203 is an evil number, because the sum of its binary digits is even.

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

The square root of 12221203 is about 3495.8837223226. The cubic root of 12221203 is about 230.3410378615.

Adding to 12221203 its reverse (30212221), we get a palindrome (42433424).

The spelling of 12221203 in words is "twelve million, two hundred twenty-one thousand, two hundred three".