12201212201212 has 24 divisors (see below), whose sum is σ = 21876080819040. Its totient is φ = 5952675025920.

The previous prime is 12201212201201. The next prime is 12201212201231. The reversal of 12201212201212 is 21210221210221.

12201212201212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12201212201212.

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, 221426137 + ... + 221481232.

It is an arithmetic number, because the mean of its divisors is an integer number (911503367460).

Almost surely, 2^{12201212201212} is an apocalyptic number.

It is an amenable number.

12201212201212 is a deficient number, since it is larger than the sum of its proper divisors (9674868617828).

12201212201212 is a wasteful number, since it uses less digits than its factorization.

12201212201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442907541 (or 442907539 counting only the distinct ones).

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

Adding to 12201212201212 its reverse (21210221210221), we get a palindrome (33411433411433).

Subtracting 12201212201212 from its reverse (21210221210221), we obtain a palindrome (9009009009009).

The spelling of 12201212201212 in words is "twelve trillion, two hundred one billion, two hundred twelve million, two hundred one thousand, two hundred twelve".