30221234 has 4 divisors (see below), whose sum is σ = 45331854. Its totient is φ = 15110616.

The previous prime is 30221209. The next prime is 30221239. The reversal of 30221234 is 43212203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43212203 = 4637 ⋅9319.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 4225 = 5497^2 + 65^2 .

It is not an unprimeable number, because it can be changed into a prime (30221239) 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 as a sum of consecutive naturals, namely, 7555307 + ... + 7555310.

Almost surely, 2^30221234 is an apocalyptic number.

30221234 is a deficient number, since it is larger than the sum of its proper divisors (15110620).

30221234 is a wasteful number, since it uses less digits than its factorization.

30221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15110619.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30221234 is about 5497.3842870951. The cubic root of 30221234 is about 311.4851867805.

Adding to 30221234 its reverse (43212203), we get a palindrome (73433437).

The spelling of 30221234 in words is "thirty million, two hundred twenty-one thousand, two hundred thirty-four".