30213222 has 32 divisors (see below), whose sum is σ = 65288160. Its totient is φ = 9265920.

The previous prime is 30213217. The next prime is 30213247. The reversal of 30213222 is 22231203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39322 + ... + 40082.

It is an arithmetic number, because the mean of its divisors is an integer number (2040255).

Almost surely, 2^30213222 is an apocalyptic number.

30213222 is an abundant number, since it is smaller than the sum of its proper divisors (35074938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30213222 is a wasteful number, since it uses less digits than its factorization.

30213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30213222 is about 5496.6555285919. The cubic root of 30213222 is about 311.4576582345.

Adding to 30213222 its reverse (22231203), we get a palindrome (52444425).

The spelling of 30213222 in words is "thirty million, two hundred thirteen thousand, two hundred twenty-two".