5013621221 has 4 divisors (see below), whose sum is σ = 5729852832. Its totient is φ = 4297389612.

The previous prime is 5013621209. The next prime is 5013621233. The reversal of 5013621221 is 1221263105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (5013621209) and next prime (5013621233).

It is a cyclic number.

It is not a de Polignac number, because 5013621221 - 2⁶ = 5013621157 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 (5013621241) 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, 358115795 + ... + 358115808.

It is an arithmetic number, because the mean of its divisors is an integer number (1432463208).

Almost surely, 2^5013621221 is an apocalyptic number.

It is an amenable number.

5013621221 is a deficient number, since it is larger than the sum of its proper divisors (716231611).

5013621221 is an equidigital number, since it uses as much as digits as its factorization.

5013621221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716231610.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 5013621221 is about 70806.9291877568. The cubic root of 5013621221 is about 1711.5273360922.

Adding to 5013621221 its reverse (1221263105), we get a palindrome (6234884326).

The spelling of 5013621221 in words is "five billion, thirteen million, six hundred twenty-one thousand, two hundred twenty-one".