199922 has 4 divisors (see below), whose sum is σ = 299886. Its totient is φ = 99960.

The previous prime is 199921. The next prime is 199931. The reversal of 199922 is 229991.

199922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 229991 = 349 ⋅659.

It can be written as a sum of positive squares in only one way, i.e., 185761 + 14161 = 431^2 + 119^2 .

It is not an unprimeable number, because it can be changed into a prime (199921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49979 + ... + 49982.

2¹⁹⁹⁹²² is an apocalyptic number.

199922 is a deficient number, since it is larger than the sum of its proper divisors (99964).

199922 is an equidigital number, since it uses as much as digits as its factorization.

199922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99963.

The product of its digits is 2916, while the sum is 32.

The square root of 199922 is about 447.1263803445. The cubic root of 199922 is about 58.4727513296.

The spelling of 199922 in words is "one hundred ninety-nine thousand, nine hundred twenty-two".