104412221 has 8 divisors (see below), whose sum is σ = 105424824. Its totient is φ = 103403520.

The previous prime is 104412211. The next prime is 104412229. The reversal of 104412221 is 122214401.

It can be written as a sum of positive squares in 4 ways, for example, as 48372025 + 56040196 = 6955^2 + 7486^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104412221 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 104412221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104412229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89981 + ... + 91133.

It is an arithmetic number, because the mean of its divisors is an integer number (13178103).

Almost surely, 2^104412221 is an apocalyptic number.

It is an amenable number.

104412221 is a deficient number, since it is larger than the sum of its proper divisors (1012603).

104412221 is a wasteful number, since it uses less digits than its factorization.

104412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 104412221 is about 10218.2298369140. The cubic root of 104412221 is about 470.8874450630.

Adding to 104412221 its reverse (122214401), we get a palindrome (226626622).

The spelling of 104412221 in words is "one hundred four million, four hundred twelve thousand, two hundred twenty-one".