1004066221 has 8 divisors (see below), whose sum is σ = 1031957120. Its totient is φ = 976555008.

The previous prime is 1004066209. The next prime is 1004066237. The reversal of 1004066221 is 1226604001.

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

It is a cyclic number.

It is not a de Polignac number, because 1004066221 - 2⁷ = 1004066093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004066192 and 1004066201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004066281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89556 + ... + 100141.

It is an arithmetic number, because the mean of its divisors is an integer number (128994640).

Almost surely, 2^1004066221 is an apocalyptic number.

It is an amenable number.

1004066221 is a deficient number, since it is larger than the sum of its proper divisors (27890899).

1004066221 is an equidigital number, since it uses as much as digits as its factorization.

1004066221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189843.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1004066221 is about 31687.0039763939. The cubic root of 1004066221 is about 1001.3535740107.

The spelling of 1004066221 in words is "one billion, four million, sixty-six thousand, two hundred twenty-one".