320212132302220 has 24 divisors (see below), whose sum is σ = 672447411897408. Its totient is φ = 128084484528000.

The previous prime is 320212132302137. The next prime is 320212132302221. The reversal of 320212132302220 is 22203231212023.

It is not an unprimeable number, because it can be changed into a prime (320212132302221) 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, 15842361 + ... + 29856400.

It is an arithmetic number, because the mean of its divisors is an integer number (28018642162392).

Almost surely, 2^{320212132302220} is an apocalyptic number.

It is an amenable number.

320212132302220 is an abundant number, since it is smaller than the sum of its proper divisors (352235279595188).

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

320212132302220 is a wasteful number, since it uses less digits than its factorization.

320212132302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46049121 (or 46049119 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 320212132302220 its reverse (22203231212023), we get a palindrome (342415363514243).

The spelling of 320212132302220 in words is "three hundred twenty trillion, two hundred twelve billion, one hundred thirty-two million, three hundred two thousand, two hundred twenty".