30222205 has 16 divisors (see below), whose sum is σ = 40405680. Its totient is φ = 21547008.

The previous prime is 30222187. The next prime is 30222211. The reversal of 30222205 is 50222203.

It can be written as a sum of positive squares in 8 ways, for example, as 10169721 + 20052484 = 3189^2 + 4478^2 .

It is a cyclic number.

It is not a de Polignac number, because 30222205 - 2⁵ = 30222173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6132 + ... + 9901.

It is an arithmetic number, because the mean of its divisors is an integer number (2525355).

Almost surely, 2^30222205 is an apocalyptic number.

It is an amenable number.

30222205 is a deficient number, since it is larger than the sum of its proper divisors (10183475).

30222205 is a wasteful number, since it uses less digits than its factorization.

30222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16080.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30222205 is about 5497.4726011141. The cubic root of 30222205 is about 311.4885227228.

Adding to 30222205 its reverse (50222203), we get a palindrome (80444408).

The spelling of 30222205 in words is "thirty million, two hundred twenty-two thousand, two hundred five".