12111210212 has 12 divisors (see below), whose sum is σ = 21196188720. Its totient is φ = 6055156296.

The previous prime is 12111210149. The next prime is 12111210217. The reversal of 12111210212 is 21201211121.

12111210212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12111210217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47318 + ... + 162669.

It is an arithmetic number, because the mean of its divisors is an integer number (1766349060).

Almost surely, 2^12111210212 is an apocalyptic number.

It is an amenable number.

12111210212 is a deficient number, since it is larger than the sum of its proper divisors (9084978508).

12111210212 is a wasteful number, since it uses less digits than its factorization.

12111210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224410 (or 224408 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12111210212 its reverse (21201211121), we get a palindrome (33312421333).

Subtracting 12111210212 from its reverse (21201211121), we obtain a palindrome (9090000909).

The spelling of 12111210212 in words is "twelve billion, one hundred eleven million, two hundred ten thousand, two hundred twelve".