305222 has 8 divisors (see below), whose sum is σ = 462672. Its totient is φ = 151000.

The previous prime is 305219. The next prime is 305231. The reversal of 305222 is 222503.

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

It is a junction number, because it is equal to n+sod(n) for n = 305197 and 305206.

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 305222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554 + ... + 957.

It is an arithmetic number, because the mean of its divisors is an integer number (57834).

2³⁰⁵²²² is an apocalyptic number.

305222 is a deficient number, since it is larger than the sum of its proper divisors (157450).

305222 is a wasteful number, since it uses less digits than its factorization.

305222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 305222 is about 552.4690036554. The cubic root of 305222 is about 67.3294827281.

Adding to 305222 its reverse (222503), we get a palindrome (527725).

The spelling of 305222 in words is "three hundred five thousand, two hundred twenty-two".