204220320010401 has 16 divisors (see below), whose sum is σ = 274204566969984. Its totient is φ = 135192593313024.

The previous prime is 204220320010381. The next prime is 204220320010621. The reversal of 204220320010401 is 104010023022402.

It is a de Polignac number, because none of the positive numbers 2^k-204220320010401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204220320010001) 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, 138865701 + ... + 140328626.

It is an arithmetic number, because the mean of its divisors is an integer number (17137785435624).

Almost surely, 2^{204220320010401} is an apocalyptic number.

It is an amenable number.

204220320010401 is a deficient number, since it is larger than the sum of its proper divisors (69984246959583).

204220320010401 is a wasteful number, since it uses less digits than its factorization.

204220320010401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279196040.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 204220320010401 its reverse (104010023022402), we get a palindrome (308230343032803).

The spelling of 204220320010401 in words is "two hundred four trillion, two hundred twenty billion, three hundred twenty million, ten thousand, four hundred one".