1005230221 has 8 divisors (see below), whose sum is σ = 1042701440. Its totient is φ = 968399712.

The previous prime is 1005230197. The next prime is 1005230227. The reversal of 1005230221 is 1220325001.

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-1005230221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005230195 and 1005230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005230227) 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, 156981 + ... + 163258.

It is an arithmetic number, because the mean of its divisors is an integer number (130337680).

Almost surely, 2^1005230221 is an apocalyptic number.

It is an amenable number.

1005230221 is a deficient number, since it is larger than the sum of its proper divisors (37471219).

1005230221 is an equidigital number, since it uses as much as digits as its factorization.

1005230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320355.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1005230221 is about 31705.3658076989. The cubic root of 1005230221 is about 1001.7403763331.

Adding to 1005230221 its reverse (1220325001), we get a palindrome (2225555222).

The spelling of 1005230221 in words is "one billion, five million, two hundred thirty thousand, two hundred twenty-one".