5000621221 has 4 divisors (see below), whose sum is σ = 5001051532. Its totient is φ = 5000190912.

The previous prime is 5000621203. The next prime is 5000621243. The reversal of 5000621221 is 1221260005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2449260100 + 2551361121 = 49490^2 + 50511^2 .

It is a cyclic number.

It is not a de Polignac number, because 5000621221 - 2¹³ = 5000613029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5000621251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197226 + ... + 221131.

It is an arithmetic number, because the mean of its divisors is an integer number (1250262883).

Almost surely, 2^5000621221 is an apocalyptic number.

It is an amenable number.

5000621221 is a deficient number, since it is larger than the sum of its proper divisors (430311).

5000621221 is a wasteful number, since it uses less digits than its factorization.

5000621221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430310.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5000621221 is about 70715.0706780386. The cubic root of 5000621221 is about 1710.0467619418.

Adding to 5000621221 its reverse (1221260005), we get a palindrome (6221881226).

The spelling of 5000621221 in words is "five billion, six hundred twenty-one thousand, two hundred twenty-one".