30000221 has 8 divisors (see below), whose sum is σ = 31759200. Its totient is φ = 28259280.

The previous prime is 30000199. The next prime is 30000247. The reversal of 30000221 is 12200003.

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-30000221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30000199 and 30000208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (3969900).

Almost surely, 2^30000221 is an apocalyptic number.

It is an amenable number.

30000221 is a deficient number, since it is larger than the sum of its proper divisors (1758979).

30000221 is a wasteful number, since it uses less digits than its factorization.

30000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 30000221 is about 5477.2457494620. The cubic root of 30000221 is about 310.7240135917.

Adding to 30000221 its reverse (12200003), we get a palindrome (42200224).

The spelling of 30000221 in words is "thirty million, two hundred twenty-one", and thus it is an aban number.