320221140212 has 12 divisors (see below), whose sum is σ = 560441112420. Its totient is φ = 160095108096.

The previous prime is 320221140131. The next prime is 320221140251. The reversal of 320221140212 is 212041122023.

It can be written as a sum of positive squares in 2 ways, for example, as 72083658256 + 248137481956 = 268484^2 + 498134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818843 + ... + 3901794.

It is an arithmetic number, because the mean of its divisors is an integer number (46703426035).

Almost surely, 2^320221140212 is an apocalyptic number.

It is an amenable number.

320221140212 is a deficient number, since it is larger than the sum of its proper divisors (240219972208).

320221140212 is a wasteful number, since it uses less digits than its factorization.

320221140212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731010 (or 7731008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 320221140212 its reverse (212041122023), we get a palindrome (532262262235).

It can be divided in two parts, 3202211 and 40212, that added together give a palindrome (3242423).

The spelling of 320221140212 in words is "three hundred twenty billion, two hundred twenty-one million, one hundred forty thousand, two hundred twelve".