30012221212 has 24 divisors (see below), whose sum is σ = 52606488704. Its totient is φ = 14981820912.

The previous prime is 30012221189. The next prime is 30012221221. The reversal of 30012221212 is 21212221003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9415483 + ... + 9418669.

Almost surely, 2^30012221212 is an apocalyptic number.

It is an amenable number.

30012221212 is a deficient number, since it is larger than the sum of its proper divisors (22594267492).

30012221212 is a wasteful number, since it uses less digits than its factorization.

30012221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265 (or 6263 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30012221212 its reverse (21212221003), we get a palindrome (51224442215).

The spelling of 30012221212 in words is "thirty billion, twelve million, two hundred twenty-one thousand, two hundred twelve".