320021120212 has 24 divisors (see below), whose sum is σ = 560910535304. Its totient is φ = 159761123712.

The previous prime is 320021120203. The next prime is 320021120239. The reversal of 320021120212 is 212021120023.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 116769824656 + 203251295556 = 341716^2 + 450834^2 .

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, 8952118 + ... + 8987794.

Almost surely, 2^320021120212 is an apocalyptic number.

It is an amenable number.

320021120212 is a deficient number, since it is larger than the sum of its proper divisors (240889415092).

320021120212 is a wasteful number, since it uses less digits than its factorization.

320021120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39115 (or 39113 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 320021120212 its reverse (212021120023), we get a palindrome (532042240235).

The spelling of 320021120212 in words is "three hundred twenty billion, twenty-one million, one hundred twenty thousand, two hundred twelve".