204221034011020 has 24 divisors (see below), whose sum is σ = 461853723071664. Its totient is φ = 75404689480896.

The previous prime is 204221034011003. The next prime is 204221034011021. The reversal of 204221034011020 is 20110430122402.

It is a junction number, because it is equal to n+sod(n) for n = 204221034010982 and 204221034011000.

It is not an unprimeable number, because it can be changed into a prime (204221034011021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392732757454 + ... + 392732757973.

It is an arithmetic number, because the mean of its divisors is an integer number (19243905127986).

Almost surely, 2^{204221034011020} is an apocalyptic number.

204221034011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204221034011020 is an abundant number, since it is smaller than the sum of its proper divisors (257632689060644).

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

204221034011020 is a wasteful number, since it uses less digits than its factorization.

204221034011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785465515449 (or 785465515447 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 204221034011020 its reverse (20110430122402), we get a palindrome (224331464133422).

The spelling of 204221034011020 in words is "two hundred four trillion, two hundred twenty-one billion, thirty-four million, eleven thousand, twenty".