204021521344201 has 16 divisors (see below), whose sum is σ = 225993424809600. Its totient is φ = 182639583751680.

The previous prime is 204021521344181. The next prime is 204021521344217. The reversal of 204021521344201 is 102443125120402.

It is not a de Polignac number, because 204021521344201 - 2⁷ = 204021521344073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204021521344241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480215866 + ... + 480640531.

It is an arithmetic number, because the mean of its divisors is an integer number (14124589050600).

Almost surely, 2^{204021521344201} is an apocalyptic number.

It is an amenable number.

204021521344201 is a deficient number, since it is larger than the sum of its proper divisors (21971903465399).

204021521344201 is a wasteful number, since it uses less digits than its factorization.

204021521344201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960856704.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 204021521344201 its reverse (102443125120402), we get a palindrome (306464646464603).

The spelling of 204021521344201 in words is "two hundred four trillion, twenty-one billion, five hundred twenty-one million, three hundred forty-four thousand, two hundred one".