5621221364 has 24 divisors (see below), whose sum is σ = 11296236000. Its totient is φ = 2420621280.

The previous prime is 5621221349. The next prime is 5621221391. The reversal of 5621221364 is 4631221265.

It is a self number, because there is not a number n which added to its sum of digits gives 5621221364.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3361139 + ... + 3362810.

It is an arithmetic number, because the mean of its divisors is an integer number (470676500).

Almost surely, 2^5621221364 is an apocalyptic number.

It is an amenable number.

5621221364 is an abundant number, since it is smaller than the sum of its proper divisors (5675014636).

5621221364 is a wasteful number, since it uses less digits than its factorization.

5621221364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723983 (or 6723981 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 5621221364 is about 74974.8048613666. The cubic root of 5621221364 is about 1778.0483347419.

Subtracting from 5621221364 its reverse (4631221265), we obtain a palindrome (990000099).

The spelling of 5621221364 in words is "five billion, six hundred twenty-one million, two hundred twenty-one thousand, three hundred sixty-four".