104441135221 has 4 divisors (see below), whose sum is σ = 106411722732. Its totient is φ = 102470547712.

The previous prime is 104441135143. The next prime is 104441135233. The reversal of 104441135221 is 122531144401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122531144401 = 59393 ⋅2063057.

It can be written as a sum of positive squares in 2 ways, for example, as 43424724996 + 61016410225 = 208386^2 + 247015^2 .

It is a cyclic number.

It is not a de Polignac number, because 104441135221 - 2¹³ = 104441127029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104441135221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104441135251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 985293676 + ... + 985293781.

It is an arithmetic number, because the mean of its divisors is an integer number (26602930683).

Almost surely, 2^104441135221 is an apocalyptic number.

It is an amenable number.

104441135221 is a deficient number, since it is larger than the sum of its proper divisors (1970587511).

104441135221 is an equidigital number, since it uses as much as digits as its factorization.

104441135221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970587510.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 104441135221 its reverse (122531144401), we get a palindrome (226972279622).

The spelling of 104441135221 in words is "one hundred four billion, four hundred forty-one million, one hundred thirty-five thousand, two hundred twenty-one".