192221 has 4 divisors (see below), whose sum is σ = 193344. Its totient is φ = 191100.

The previous prime is 192193. The next prime is 192229. The reversal of 192221 is 122291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 192221 - 2¹⁴ = 175837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 192221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245 + ... + 666.

It is an arithmetic number, because the mean of its divisors is an integer number (48336).

2¹⁹²²²¹ is an apocalyptic number.

It is an amenable number.

192221 is a deficient number, since it is larger than the sum of its proper divisors (1123).

192221 is an equidigital number, since it uses as much as digits as its factorization.

192221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122.

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

The square root of 192221 is about 438.4301540725. The cubic root of 192221 is about 57.7121088498.

The spelling of 192221 in words is "one hundred ninety-two thousand, two hundred twenty-one".