30105222 has 32 divisors (see below), whose sum is σ = 69984000. Its totient is φ = 8455008.

The previous prime is 30105209. The next prime is 30105307. The reversal of 30105222 is 22250103.

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, 3597 + ... + 8552.

It is an arithmetic number, because the mean of its divisors is an integer number (2187000).

Almost surely, 2^30105222 is an apocalyptic number.

30105222 is an abundant number, since it is smaller than the sum of its proper divisors (39878778).

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

30105222 is a wasteful number, since it uses less digits than its factorization.

30105222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 30105222 is about 5486.8225777767. The cubic root of 30105222 is about 311.0861036116.

Adding to 30105222 its reverse (22250103), we get a palindrome (52355325).

The spelling of 30105222 in words is "thirty million, one hundred five thousand, two hundred twenty-two".