30221229 has 8 divisors (see below), whose sum is σ = 42415840. Its totient is φ = 19087056.

The previous prime is 30221209. The next prime is 30221239. The reversal of 30221229 is 92212203.

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

It is not a de Polignac number, because 30221229 - 2⁷ = 30221101 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 (30221209) 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, 265042 + ... + 265155.

It is an arithmetic number, because the mean of its divisors is an integer number (5301980).

Almost surely, 2^30221229 is an apocalyptic number.

It is an amenable number.

30221229 is a deficient number, since it is larger than the sum of its proper divisors (12194611).

30221229 is a wasteful number, since it uses less digits than its factorization.

30221229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530219.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30221229 is about 5497.3838323333. The cubic root of 30221229 is about 311.4851696024.

The spelling of 30221229 in words is "thirty million, two hundred twenty-one thousand, two hundred twenty-nine".