204020422301220 has 72 divisors (see below), whose sum is σ = 664523661219264. Its totient is φ = 46633239382464.

The previous prime is 204020422301219. The next prime is 204020422301239. The reversal of 204020422301220 is 22103224020402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34697347792 + ... + 34697353671.

It is an arithmetic number, because the mean of its divisors is an integer number (9229495294712).

Almost surely, 2^{204020422301220} is an apocalyptic number.

204020422301220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204020422301220 is an abundant number, since it is smaller than the sum of its proper divisors (460503238918044).

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

204020422301220 is a wasteful number, since it uses less digits than its factorization.

204020422301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69394701489 (or 69394701480 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 204020422301220 its reverse (22103224020402), we get a palindrome (226123646321622).

The spelling of 204020422301220 in words is "two hundred four trillion, twenty billion, four hundred twenty-two million, three hundred one thousand, two hundred twenty".