224221003 has 2 divisors, whose sum is σ = 224221004. Its totient is φ = 224221002.

The previous prime is 224221001. The next prime is 224221021. The reversal of 224221003 is 300122422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 224221003 - 2¹ = 224221001 is a prime.

Together with 224221001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (224221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112110501 + 112110502.

It is an arithmetic number, because the mean of its divisors is an integer number (112110502).

Almost surely, 2^224221003 is an apocalyptic number.

224221003 is a deficient number, since it is larger than the sum of its proper divisors (1).

224221003 is an equidigital number, since it uses as much as digits as its factorization.

224221003 is an odious number, because the sum of its binary digits is odd.

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

The square root of 224221003 is about 14974.0109189222. The cubic root of 224221003 is about 607.5174594608.

Adding to 224221003 its reverse (300122422), we get a palindrome (524343425).

The spelling of 224221003 in words is "two hundred twenty-four million, two hundred twenty-one thousand, three".