191222 has 8 divisors (see below), whose sum is σ = 299376. Its totient is φ = 91432.

The previous prime is 191189. The next prime is 191227. The reversal of 191222 is 222191.

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

It is a self number, because there is not a number n which added to its sum of digits gives 191222.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 191222.

It is not an unprimeable number, because it can be changed into a prime (191227) 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, 2033 + ... + 2124.

It is an arithmetic number, because the mean of its divisors is an integer number (37422).

2¹⁹¹²²² is an apocalyptic number.

191222 is a deficient number, since it is larger than the sum of its proper divisors (108154).

191222 is a wasteful number, since it uses less digits than its factorization.

191222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182.

The product of its digits is 72, while the sum is 17.

The square root of 191222 is about 437.2893778724. The cubic root of 191222 is about 57.6119557872.

The spelling of 191222 in words is "one hundred ninety-one thousand, two hundred twenty-two".