224203003240721 has 2 divisors, whose sum is σ = 224203003240722. Its totient is φ = 224203003240720.

The previous prime is 224203003240703. The next prime is 224203003240771. The reversal of 224203003240721 is 127042300302422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176857044135121 + 47345959105600 = 13298761^2 + 6880840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224203003240721 is a prime.

It is not a weakly prime, because it can be changed into another prime (224203003240771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112101501620360 + 112101501620361.

It is an arithmetic number, because the mean of its divisors is an integer number (112101501620361).

Almost surely, 2^{224203003240721} is an apocalyptic number.

It is an amenable number.

224203003240721 is a deficient number, since it is larger than the sum of its proper divisors (1).

224203003240721 is an equidigital number, since it uses as much as digits as its factorization.

224203003240721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 32.

The spelling of 224203003240721 in words is "two hundred twenty-four trillion, two hundred three billion, three million, two hundred forty thousand, seven hundred twenty-one".