30215212 has 6 divisors (see below), whose sum is σ = 52876628. Its totient is φ = 15107604.

The previous prime is 30215201. The next prime is 30215221. The reversal of 30215212 is 21251203.

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 as a sum of consecutive naturals, namely, 3776898 + ... + 3776905.

Almost surely, 2^30215212 is an apocalyptic number.

It is an amenable number.

30215212 is a deficient number, since it is larger than the sum of its proper divisors (22661416).

30215212 is a wasteful number, since it uses less digits than its factorization.

30215212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7553807 (or 7553805 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 30215212 is about 5496.8365447774. The cubic root of 30215212 is about 311.4644961584.

Adding to 30215212 its reverse (21251203), we get a palindrome (51466415).

The spelling of 30215212 in words is "thirty million, two hundred fifteen thousand, two hundred twelve".