320211212 has 6 divisors (see below), whose sum is σ = 560369628. Its totient is φ = 160105604.

The previous prime is 320211211. The next prime is 320211223. The reversal of 320211212 is 212112023.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (320211211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40026398 + ... + 40026405.

It is an arithmetic number, because the mean of its divisors is an integer number (93394938).

Almost surely, 2^320211212 is an apocalyptic number.

It is an amenable number.

320211212 is a deficient number, since it is larger than the sum of its proper divisors (240158416).

320211212 is a wasteful number, since it uses less digits than its factorization.

320211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80052807 (or 80052805 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 320211212 is about 17894.4464010486. The cubic root of 320211212 is about 684.1408320071.

Adding to 320211212 its reverse (212112023), we get a palindrome (532323235).

It can be divided in two parts, 32021 and 1212, that added together give a palindrome (33233).

The spelling of 320211212 in words is "three hundred twenty million, two hundred eleven thousand, two hundred twelve".