1004221001 has 8 divisors (see below), whose sum is σ = 1158408000. Its totient is φ = 852715728.

The previous prime is 1004220989. The next prime is 1004221013. The reversal of 1004221001 is 1001224001.

It is an interprime number because it is at equal distance from previous prime (1004220989) and next prime (1004221013).

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 1004221001 - 2²² = 1000026697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004221081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669626 + ... + 671123.

It is an arithmetic number, because the mean of its divisors is an integer number (144801000).

Almost surely, 2^1004221001 is an apocalyptic number.

It is an amenable number.

1004221001 is a deficient number, since it is larger than the sum of its proper divisors (154186999).

1004221001 is a wasteful number, since it uses less digits than its factorization.

1004221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340863.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1004221001 is about 31689.4462084777. The cubic root of 1004221001 is about 1001.4050253127.

Adding to 1004221001 its reverse (1001224001), we get a palindrome (2005445002).

The spelling of 1004221001 in words is "one billion, four million, two hundred twenty-one thousand, one".