304211222 has 16 divisors (see below), whose sum is σ = 529290240. Its totient is φ = 128429928.

The previous prime is 304211191. The next prime is 304211227. The reversal of 304211222 is 222112403.

304211222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 304211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304211227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161222 + ... + 163097.

It is an arithmetic number, because the mean of its divisors is an integer number (33080640).

Almost surely, 2^304211222 is an apocalyptic number.

304211222 is a deficient number, since it is larger than the sum of its proper divisors (225079018).

304211222 is a wasteful number, since it uses less digits than its factorization.

304211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324395.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 304211222 is about 17441.6519286448. The cubic root of 304211222 is about 672.5507740717.

Adding to 304211222 its reverse (222112403), we get a palindrome (526323625).

The spelling of 304211222 in words is "three hundred four million, two hundred eleven thousand, two hundred twenty-two".