104532221 has 4 divisors (see below), whose sum is σ = 104604192. Its totient is φ = 104460252.

The previous prime is 104532203. The next prime is 104532227. The reversal of 104532221 is 122235401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122235401 = 977 ⋅125113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104532221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104532193 and 104532202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104532227) 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, 33761 + ... + 36726.

It is an arithmetic number, because the mean of its divisors is an integer number (26151048).

Almost surely, 2^104532221 is an apocalyptic number.

It is an amenable number.

104532221 is a deficient number, since it is larger than the sum of its proper divisors (71971).

104532221 is an equidigital number, since it uses as much as digits as its factorization.

104532221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71970.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 104532221 is about 10224.1000092918. The cubic root of 104532221 is about 471.0677715268.

Adding to 104532221 its reverse (122235401), we get a palindrome (226767622).

The spelling of 104532221 in words is "one hundred four million, five hundred thirty-two thousand, two hundred twenty-one".