9211222 has 8 divisors (see below), whose sum is σ = 13856400. Its totient is φ = 4592424.

The previous prime is 9211207. The next prime is 9211231. The reversal of 9211222 is 2221129.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9211222² = 169693221466568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9211222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5697 + ... + 7132.

It is an arithmetic number, because the mean of its divisors is an integer number (1732050).

Almost surely, 2^9211222 is an apocalyptic number.

9211222 is a deficient number, since it is larger than the sum of its proper divisors (4645178).

9211222 is a wasteful number, since it uses less digits than its factorization.

9211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13190.

The product of its digits is 144, while the sum is 19.

The square root of 9211222 is about 3034.9995057660. Note that the first 3 decimals coincide. The cubic root of 9211222 is about 209.6230729170.

The spelling of 9211222 in words is "nine million, two hundred eleven thousand, two hundred twenty-two".