30203221 has 8 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 29566080.

The previous prime is 30203219. The next prime is 30203233. The reversal of 30203221 is 12230203.

It is a happy number.

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

It is not a de Polignac number, because 30203221 - 2¹ = 30203219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203291) 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, 15045 + ... + 16933.

It is an arithmetic number, because the mean of its divisors is an integer number (3855600).

Almost surely, 2^30203221 is an apocalyptic number.

It is an amenable number.

30203221 is a deficient number, since it is larger than the sum of its proper divisors (641579).

30203221 is a wasteful number, since it uses less digits than its factorization.

30203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30203221 is about 5495.7457182806. The cubic root of 30203221 is about 311.4232888251.

Adding to 30203221 its reverse (12230203), we get a palindrome (42433424).

It can be divided in two parts, 3020 and 3221, that added together give a square (6241 = 79²).

The spelling of 30203221 in words is "thirty million, two hundred three thousand, two hundred twenty-one".