320130222 has 16 divisors (see below), whose sum is σ = 644340432. Its totient is φ = 106030080.

The previous prime is 320130203. The next prime is 320130263. The reversal of 320130222 is 222031023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168979 + ... + 170862.

It is an arithmetic number, because the mean of its divisors is an integer number (40271277).

Almost surely, 2^320130222 is an apocalyptic number.

320130222 is an abundant number, since it is smaller than the sum of its proper divisors (324210210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320130222 is a wasteful number, since it uses less digits than its factorization.

320130222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340003.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 320130222 is about 17892.1832653257. The cubic root of 320130222 is about 684.0831479577.

Adding to 320130222 its reverse (222031023), we get a palindrome (542161245).

The spelling of 320130222 in words is "three hundred twenty million, one hundred thirty thousand, two hundred twenty-two".