30221299 has 4 divisors (see below), whose sum is σ = 30254760. Its totient is φ = 30187840.

The previous prime is 30221281. The next prime is 30221351. The reversal of 30221299 is 99212203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99212203 = 9791 ⋅10133.

It is a cyclic number.

It is not a de Polignac number, because 30221299 - 2⁷ = 30221171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30221209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15337 + ... + 17194.

It is an arithmetic number, because the mean of its divisors is an integer number (7563690).

Almost surely, 2^30221299 is an apocalyptic number.

30221299 is a deficient number, since it is larger than the sum of its proper divisors (33461).

30221299 is an equidigital number, since it uses as much as digits as its factorization.

30221299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33460.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 30221299 is about 5497.3901989944. The cubic root of 30221299 is about 311.4854100950.

The spelling of 30221299 in words is "thirty million, two hundred twenty-one thousand, two hundred ninety-nine".