30221319 has 8 divisors (see below), whose sum is σ = 40486912. Its totient is φ = 20051640.

The previous prime is 30221281. The next prime is 30221351. The reversal of 30221319 is 91312203.

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 30221319 - 2⁹ = 30220807 is a prime.

It is a super-2 number, since 2×30221319² = 1826656244199522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30221295 and 30221304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23239 + ... + 24504.

It is an arithmetic number, because the mean of its divisors is an integer number (5060864).

Almost surely, 2^30221319 is an apocalyptic number.

30221319 is a deficient number, since it is larger than the sum of its proper divisors (10265593).

30221319 is a wasteful number, since it uses less digits than its factorization.

30221319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47957.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 30221319 is about 5497.3920180391. The cubic root of 30221319 is about 311.4854788071.

The spelling of 30221319 in words is "thirty million, two hundred twenty-one thousand, three hundred nineteen".