30221204 has 12 divisors (see below), whose sum is σ = 56955444. Its totient is φ = 13948224.

The previous prime is 30221173. The next prime is 30221207. The reversal of 30221204 is 40212203.

It can be written as a sum of positive squares in 2 ways, for example, as 2553604 + 27667600 = 1598^2 + 5260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221207) 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, 290537 + ... + 290640.

It is an arithmetic number, because the mean of its divisors is an integer number (4746287).

Almost surely, 2^30221204 is an apocalyptic number.

It is an amenable number.

30221204 is a deficient number, since it is larger than the sum of its proper divisors (26734240).

30221204 is a wasteful number, since it uses less digits than its factorization.

30221204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581194 (or 581192 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30221204 is about 5497.3815585240. The cubic root of 30221204 is about 311.4850837121.

Adding to 30221204 its reverse (40212203), we get a palindrome (70433407).

Subtracting 30221204 from its reverse (40212203), we obtain a palindrome (9990999).

The spelling of 30221204 in words is "thirty million, two hundred twenty-one thousand, two hundred four".