12102212120212 has 12 divisors (see below), whose sum is σ = 21308802936736. Its totient is φ = 6013982709720.

The previous prime is 12102212120189. The next prime is 12102212120213. The reversal of 12102212120212 is 21202121220121.

It is a self number, because there is not a number n which added to its sum of digits gives 12102212120212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102212120213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9280836864 + ... + 9280838167.

Almost surely, 2^{12102212120212} is an apocalyptic number.

It is an amenable number.

12102212120212 is a deficient number, since it is larger than the sum of its proper divisors (9206590816524).

12102212120212 is a wasteful number, since it uses less digits than its factorization.

12102212120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18561675198 (or 18561675196 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12102212120212 its reverse (21202121220121), we get a palindrome (33304333340333).

Subtracting 12102212120212 from its reverse (21202121220121), we obtain a palindrome (9099909099909).

The spelling of 12102212120212 in words is "twelve trillion, one hundred two billion, two hundred twelve million, one hundred twenty thousand, two hundred twelve".