9924716221 has 24 divisors (see below), whose sum is σ = 11641659936. Its totient is φ = 8435962080.

The previous prime is 9924716189. The next prime is 9924716227. The reversal of 9924716221 is 1226174299.

It is not a de Polignac number, because 9924716221 - 2⁵ = 9924716189 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 (9924716227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5314930 + ... + 5316796.

It is an arithmetic number, because the mean of its divisors is an integer number (485069164).

Almost surely, 2^9924716221 is an apocalyptic number.

It is an amenable number.

9924716221 is a deficient number, since it is larger than the sum of its proper divisors (1716943715).

9924716221 is a wasteful number, since it uses less digits than its factorization.

9924716221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729 (or 2722 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 9924716221 is about 99622.8699697012. The cubic root of 9924716221 is about 2149.0145995252.

The spelling of 9924716221 in words is "nine billion, nine hundred twenty-four million, seven hundred sixteen thousand, two hundred twenty-one".