320222012 has 24 divisors (see below), whose sum is σ = 611960832. Its totient is φ = 145406000.

The previous prime is 320221987. The next prime is 320222017. The reversal of 320222012 is 210222023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320222017) 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, 47483 + ... + 53805.

It is an arithmetic number, because the mean of its divisors is an integer number (25498368).

Almost surely, 2^320222012 is an apocalyptic number.

It is an amenable number.

320222012 is a deficient number, since it is larger than the sum of its proper divisors (291738820).

320222012 is a wasteful number, since it uses less digits than its factorization.

320222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7489 (or 7487 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 320222012 is about 17894.7481681079. The cubic root of 320222012 is about 684.1485234283.

Adding to 320222012 its reverse (210222023), we get a palindrome (530444035).

The spelling of 320222012 in words is "three hundred twenty million, two hundred twenty-two thousand, twelve".