204043221120401 has 16 divisors (see below), whose sum is σ = 220675245270480. Its totient is φ = 187546600243200.

The previous prime is 204043221120373. The next prime is 204043221120461. The reversal of 204043221120401 is 104021122340402.

It can be written as a sum of positive squares in 8 ways, for example, as 33584111232400 + 170459109888001 = 5795180^2 + 13055999^2 .

It is a cyclic number.

It is not a de Polignac number, because 204043221120401 - 2¹⁰ = 204043221119377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204043221120461) 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, 31022000 + ... + 37019601.

It is an arithmetic number, because the mean of its divisors is an integer number (13792202829405).

Almost surely, 2^{204043221120401} is an apocalyptic number.

It is an amenable number.

204043221120401 is a deficient number, since it is larger than the sum of its proper divisors (16632024150079).

204043221120401 is a wasteful number, since it uses less digits than its factorization.

204043221120401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68042596.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 204043221120401 its reverse (104021122340402), we get a palindrome (308064343460803).

The spelling of 204043221120401 in words is "two hundred four trillion, forty-three billion, two hundred twenty-one million, one hundred twenty thousand, four hundred one".