5045441221 has 4 divisors (see below), whose sum is σ = 5046031372. Its totient is φ = 5044851072.

The previous prime is 5045441197. The next prime is 5045441309. The reversal of 5045441221 is 1221445405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1221445405 = 5 ⋅244289081.

It can be written as a sum of positive squares in 2 ways, for example, as 2035272996 + 3010168225 = 45114^2 + 54865^2 .

It is a cyclic number.

It is not a de Polignac number, because 5045441221 - 2⁵ = 5045441189 is a prime.

It is a super-2 number, since 2×5045441221² = 50912954229131941682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5045441221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5045441021) 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 in 3 ways as a sum of consecutive naturals, for example, 282060 + ... + 299413.

It is an arithmetic number, because the mean of its divisors is an integer number (1261507843).

Almost surely, 2^5045441221 is an apocalyptic number.

It is an amenable number.

5045441221 is a deficient number, since it is larger than the sum of its proper divisors (590151).

5045441221 is an equidigital number, since it uses as much as digits as its factorization.

5045441221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590150.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 5045441221 is about 71031.2693185192. The cubic root of 5045441221 is about 1715.1405587070.

Adding to 5045441221 its reverse (1221445405), we get a palindrome (6266886626).

The spelling of 5045441221 in words is "five billion, forty-five million, four hundred forty-one thousand, two hundred twenty-one".