20000220331200 has 84 divisors (see below), whose sum is σ = 65617389552360. Its totient is φ = 5333392087040.

The previous prime is 20000220331187. The next prime is 20000220331241. The reversal of 20000220331200 is 213302200002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20000220331200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2083351485 + ... + 2083361084.

Almost surely, 2^{20000220331200} is an apocalyptic number.

20000220331200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000220331200 is an abundant number, since it is smaller than the sum of its proper divisors (45617169221160).

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

20000220331200 is a wasteful number, since it uses less digits than its factorization.

20000220331200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166712594 (or 4166712579 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20000220331200 its reverse (213302200002), we get a palindrome (20213522531202).

The spelling of 20000220331200 in words is "twenty trillion, two hundred twenty million, three hundred thirty-one thousand, two hundred".