5404221221 has 40 divisors (see below), whose sum is σ = 6539550720. Its totient is φ = 4462172064.

The previous prime is 5404221203. The next prime is 5404221223. The reversal of 5404221221 is 1221224045.

It is not a de Polignac number, because 5404221221 - 2²⁶ = 5337112357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5404221223) 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 39 ways as a sum of consecutive naturals, for example, 11282060 + ... + 11282538.

It is an arithmetic number, because the mean of its divisors is an integer number (163488768).

Almost surely, 2^5404221221 is an apocalyptic number.

It is an amenable number.

5404221221 is a deficient number, since it is larger than the sum of its proper divisors (1135329499).

5404221221 is an equidigital number, since it uses as much as digits as its factorization.

5404221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 5404221221 is about 73513.4084436302. The cubic root of 5404221221 is about 1754.8676692348.

Adding to 5404221221 its reverse (1221224045), we get a palindrome (6625445266).

The spelling of 5404221221 in words is "five billion, four hundred four million, two hundred twenty-one thousand, two hundred twenty-one".