12201202121212 has 96 divisors (see below), whose sum is σ = 25254298238400. Its totient is φ = 5103585349632.

The previous prime is 12201202121189. The next prime is 12201202121257. The reversal of 12201202121212 is 21212120210221.

12201202121212 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 12201202121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8924239 + ... + 10200217.

It is an arithmetic number, because the mean of its divisors is an integer number (263065606650).

Almost surely, 2^{12201202121212} is an apocalyptic number.

It is an amenable number.

12201202121212 is an abundant number, since it is smaller than the sum of its proper divisors (13053096117188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12201202121212 is a wasteful number, since it uses less digits than its factorization.

12201202121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276415 (or 1276413 counting only the distinct ones).

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

Adding to 12201202121212 its reverse (21212120210221), we get a palindrome (33413322331433).

The spelling of 12201202121212 in words is "twelve trillion, two hundred one billion, two hundred two million, one hundred twenty-one thousand, two hundred twelve".