204231213220 has 96 divisors (see below), whose sum is σ = 436371255936. Its totient is φ = 80281344000.

The previous prime is 204231213163. The next prime is 204231213227. The reversal of 204231213220 is 22312132402.

It is a junction number, because it is equal to n+sod(n) for n = 204231213191 and 204231213200.

It is not an unprimeable number, because it can be changed into a prime (204231213227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215660787 + ... + 215661733.

It is an arithmetic number, because the mean of its divisors is an integer number (4545533916).

Almost surely, 2^204231213220 is an apocalyptic number.

204231213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204231213220 is an abundant number, since it is smaller than the sum of its proper divisors (232140042716).

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

204231213220 is a wasteful number, since it uses less digits than its factorization.

204231213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1739 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 204231213220 its reverse (22312132402), we get a palindrome (226543345622).

The spelling of 204231213220 in words is "two hundred four billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred twenty".