104402444221 has 2 divisors, whose sum is σ = 104402444222. Its totient is φ = 104402444220.

The previous prime is 104402444183. The next prime is 104402444299. The reversal of 104402444221 is 122444204401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94178403225 + 10224040996 = 306885^2 + 101114^2 .

It is a cyclic number.

It is not a de Polignac number, because 104402444221 - 2¹¹ = 104402442173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104402444221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104402444621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52201222110 + 52201222111.

It is an arithmetic number, because the mean of its divisors is an integer number (52201222111).

Almost surely, 2^104402444221 is an apocalyptic number.

It is an amenable number.

104402444221 is a deficient number, since it is larger than the sum of its proper divisors (1).

104402444221 is an equidigital number, since it uses as much as digits as its factorization.

104402444221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 104402444221 its reverse (122444204401), we get a palindrome (226846648622).

The spelling of 104402444221 in words is "one hundred four billion, four hundred two million, four hundred forty-four thousand, two hundred twenty-one".