9917222 has 16 divisors (see below), whose sum is σ = 18001440. Its totient is φ = 4000128.

The previous prime is 9917207. The next prime is 9917231. The reversal of 9917222 is 2227199.

9917222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20597 + ... + 21072.

It is an arithmetic number, because the mean of its divisors is an integer number (1125090).

Almost surely, 2^9917222 is an apocalyptic number.

9917222 is a deficient number, since it is larger than the sum of its proper divisors (8084218).

9917222 is a wasteful number, since it uses less digits than its factorization.

9917222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41695.

The product of its digits is 4536, while the sum is 32.

The square root of 9917222 is about 3149.1621107844. The cubic root of 9917222 is about 214.8473551452.

The spelling of 9917222 in words is "nine million, nine hundred seventeen thousand, two hundred twenty-two".