305224222 has 16 divisors (see below), whose sum is σ = 489573072. Its totient is φ = 142211200.

The previous prime is 305224207. The next prime is 305224223. The reversal of 305224222 is 222422503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 305224193 and 305224202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305224223) 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 7 ways as a sum of consecutive naturals, for example, 41008 + ... + 47875.

It is an arithmetic number, because the mean of its divisors is an integer number (30598317).

Almost surely, 2^305224222 is an apocalyptic number.

305224222 is a deficient number, since it is larger than the sum of its proper divisors (184348850).

305224222 is a wasteful number, since it uses less digits than its factorization.

305224222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89003.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 305224222 is about 17470.6674743697. The cubic root of 305224222 is about 673.2964611272.

Adding to 305224222 its reverse (222422503), we get a palindrome (527646725).

The spelling of 305224222 in words is "three hundred five million, two hundred twenty-four thousand, two hundred twenty-two".