104105352221 has 4 divisors (see below), whose sum is σ = 112113456252. Its totient is φ = 96097248192.

The previous prime is 104105352187. The next prime is 104105352227. The reversal of 104105352221 is 122253501401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122253501401 = 2437 ⋅50165573.

It can be written as a sum of positive squares in 2 ways, for example, as 6907936996 + 97197415225 = 83114^2 + 311765^2 .

It is a cyclic number.

It is not a de Polignac number, because 104105352221 - 2¹⁴ = 104105335837 is a prime.

It is a super-2 number, since 2×104105352221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104105352227) 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, 4004051996 + ... + 4004052021.

It is an arithmetic number, because the mean of its divisors is an integer number (28028364063).

Almost surely, 2^104105352221 is an apocalyptic number.

It is an amenable number.

104105352221 is a deficient number, since it is larger than the sum of its proper divisors (8008104031).

104105352221 is an equidigital number, since it uses as much as digits as its factorization.

104105352221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008104030.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 104105352221 its reverse (122253501401), we get a palindrome (226358853622).

The spelling of 104105352221 in words is "one hundred four billion, one hundred five million, three hundred fifty-two thousand, two hundred twenty-one".