4224233504521 has 2 divisors, whose sum is σ = 4224233504522. Its totient is φ = 4224233504520.

The previous prime is 4224233504501. The next prime is 4224233504527. The reversal of 4224233504521 is 1254053324224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4099568018121 + 124665486400 = 2024739^2 + 353080^2 .

It is a cyclic number.

It is not a de Polignac number, because 4224233504521 - 2¹⁷ = 4224233373449 is a prime.

It is not a weakly prime, because it can be changed into another prime (4224233504527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112116752260 + 2112116752261.

It is an arithmetic number, because the mean of its divisors is an integer number (2112116752261).

Almost surely, 2^{4224233504521} is an apocalyptic number.

It is an amenable number.

4224233504521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224233504521 is an equidigital number, since it uses as much as digits as its factorization.

4224233504521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 4224233504521 its reverse (1254053324224), we get a palindrome (5478286828745).

The spelling of 4224233504521 in words is "four trillion, two hundred twenty-four billion, two hundred thirty-three million, five hundred four thousand, five hundred twenty-one".