30212212 has 12 divisors (see below), whose sum is σ = 52982496. Its totient is φ = 15074360.

The previous prime is 30212209. The next prime is 30212219. The reversal of 30212212 is 21221203.

It is a junction number, because it is equal to n+sod(n) for n = 30212192 and 30212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5728 + ... + 9655.

It is an arithmetic number, because the mean of its divisors is an integer number (4415208).

Almost surely, 2^30212212 is an apocalyptic number.

It is an amenable number.

30212212 is a deficient number, since it is larger than the sum of its proper divisors (22770284).

30212212 is a wasteful number, since it uses less digits than its factorization.

30212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15878 (or 15876 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30212212 is about 5496.5636537750. The cubic root of 30212212 is about 311.4541876156.

Adding to 30212212 its reverse (21221203), we get a palindrome (51433415).

The spelling of 30212212 in words is "thirty million, two hundred twelve thousand, two hundred twelve".