30212112 has 40 divisors (see below), whose sum is σ = 89198656. Its totient is φ = 8631936.

The previous prime is 30212093. The next prime is 30212129. The reversal of 30212112 is 21121203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44623 + ... + 45294.

Almost surely, 2^30212112 is an apocalyptic number.

It is an amenable number.

30212112 is an abundant number, since it is smaller than the sum of its proper divisors (58986544).

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

30212112 is a wasteful number, since it uses less digits than its factorization.

30212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89935 (or 89929 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 30212112 is about 5496.5545571749. The cubic root of 30212112 is about 311.4538439858.

Adding to 30212112 its reverse (21121203), we get a palindrome (51333315).

Subtracting from 30212112 its reverse (21121203), we obtain a palindrome (9090909).

The spelling of 30212112 in words is "thirty million, two hundred twelve thousand, one hundred twelve".