12102212210212 has 6 divisors (see below), whose sum is σ = 21178871367878. Its totient is φ = 6051106105104.

The previous prime is 12102212210191. The next prime is 12102212210243. The reversal of 12102212210212 is 21201221220121.

It can be written as a sum of positive squares in only one way, i.e., 11678390377956 + 423821832256 = 3417366^2 + 651016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12102212210212.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1512776526273 + ... + 1512776526280.

Almost surely, 2^{12102212210212} is an apocalyptic number.

It is an amenable number.

12102212210212 is a deficient number, since it is larger than the sum of its proper divisors (9076659157666).

12102212210212 is a wasteful number, since it uses less digits than its factorization.

12102212210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025553052557 (or 3025553052555 counting only the distinct ones).

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

Adding to 12102212210212 its reverse (21201221220121), we get a palindrome (33303433430333).

Subtracting 12102212210212 from its reverse (21201221220121), we obtain a palindrome (9099009009909).

The spelling of 12102212210212 in words is "twelve trillion, one hundred two billion, two hundred twelve million, two hundred ten thousand, two hundred twelve".