220020330312 has 48 divisors (see below), whose sum is σ = 601788299580. Its totient is φ = 72613968000.

The previous prime is 220020330293. The next prime is 220020330317. The reversal of 220020330312 is 213033020022.

It is a happy number.

220020330312 is a `hidden beast` number, since 2 + 2 + 0 + 0 + 20 + 330 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 219366709956 + 653620356 = 468366^2 + 25566^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220020330317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15120639 + ... + 15135182.

Almost surely, 2^220020330312 is an apocalyptic number.

It is an amenable number.

220020330312 is an abundant number, since it is smaller than the sum of its proper divisors (381767969268).

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

220020330312 is a wasteful number, since it uses less digits than its factorization.

220020330312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255934 (or 30255927 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 220020330312 its reverse (213033020022), we get a palindrome (433053350334).

The spelling of 220020330312 in words is "two hundred twenty billion, twenty million, three hundred thirty thousand, three hundred twelve".