45221424200521 has 2 divisors, whose sum is σ = 45221424200522. Its totient is φ = 45221424200520.

The previous prime is 45221424200471. The next prime is 45221424200549. The reversal of 45221424200521 is 12500242412254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45106858874896 + 114565325625 = 6716164^2 + 338475^2 .

It is a cyclic number.

It is not a de Polignac number, because 45221424200521 - 2³⁹ = 44671668386633 is a prime.

It is not a weakly prime, because it can be changed into another prime (45221424206521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610712100260 + 22610712100261.

It is an arithmetic number, because the mean of its divisors is an integer number (22610712100261).

Almost surely, 2^{45221424200521} is an apocalyptic number.

It is an amenable number.

45221424200521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45221424200521 is an equidigital number, since it uses as much as digits as its factorization.

45221424200521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 45221424200521 its reverse (12500242412254), we get a palindrome (57721666612775).

The spelling of 45221424200521 in words is "forty-five trillion, two hundred twenty-one billion, four hundred twenty-four million, two hundred thousand, five hundred twenty-one".