9722003221 has 24 divisors (see below), whose sum is σ = 11384561664. Its totient is φ = 8277847200.

The previous prime is 9722003209. The next prime is 9722003273. The reversal of 9722003221 is 1223002279.

It is not a de Polignac number, because 9722003221 - 2¹³ = 9721995029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9722003221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9722000221) 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, 8445996 + ... + 8447146.

It is an arithmetic number, because the mean of its divisors is an integer number (474356736).

Almost surely, 2^9722003221 is an apocalyptic number.

It is an amenable number.

9722003221 is a deficient number, since it is larger than the sum of its proper divisors (1662558443).

9722003221 is a wasteful number, since it uses less digits than its factorization.

9722003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2154 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 9722003221 is about 98600.2191731844. The cubic root of 9722003221 is about 2134.2825825692.

The spelling of 9722003221 in words is "nine billion, seven hundred twenty-two million, three thousand, two hundred twenty-one".