104540205221 has 2 divisors, whose sum is σ = 104540205222. Its totient is φ = 104540205220.

The previous prime is 104540205191. The next prime is 104540205271. The reversal of 104540205221 is 122502045401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58791700900 + 45748504321 = 242470^2 + 213889^2 .

It is a cyclic number.

It is not a de Polignac number, because 104540205221 - 2⁶ = 104540205157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104540205271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52270102610 + 52270102611.

It is an arithmetic number, because the mean of its divisors is an integer number (52270102611).

Almost surely, 2^104540205221 is an apocalyptic number.

It is an amenable number.

104540205221 is a deficient number, since it is larger than the sum of its proper divisors (1).

104540205221 is an equidigital number, since it uses as much as digits as its factorization.

104540205221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 104540205221 in words is "one hundred four billion, five hundred forty million, two hundred five thousand, two hundred twenty-one".