12222403 has 2 divisors, whose sum is σ = 12222404. Its totient is φ = 12222402.

The previous prime is 12222389. The next prime is 12222433. The reversal of 12222403 is 30422221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12222403 is a prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12222433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111201 + 6111202.

It is an arithmetic number, because the mean of its divisors is an integer number (6111202).

Almost surely, 2^12222403 is an apocalyptic number.

12222403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222403 is an equidigital number, since it uses as much as digits as its factorization.

12222403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 12222403 is about 3496.0553485321. The cubic root of 12222403 is about 230.3485766775.

Adding to 12222403 its reverse (30422221), we get a palindrome (42644624).

The spelling of 12222403 in words is "twelve million, two hundred twenty-two thousand, four hundred three".