12011212212201 has 80 divisors (see below), whose sum is σ = 18213237504000. Its totient is φ = 7887346058592.

The previous prime is 12011212212193. The next prime is 12011212212227. The reversal of 12011212212201 is 10221221211021.

12011212212201 is a `hidden beast` number, since 1 + 201 + 1 + 21 + 221 + 220 + 1 = 666.

It is not a de Polignac number, because 12011212212201 - 2³ = 12011212212193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011212212101) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4103590000 + ... + 4103592926.

It is an arithmetic number, because the mean of its divisors is an integer number (227665468800).

Almost surely, 2^{12011212212201} is an apocalyptic number.

It is an amenable number.

12011212212201 is a deficient number, since it is larger than the sum of its proper divisors (6202025291799).

12011212212201 is a wasteful number, since it uses less digits than its factorization.

12011212212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640 (or 4631 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12011212212201 its reverse (10221221211021), we get a palindrome (22232433423222).

The spelling of 12011212212201 in words is "twelve trillion, eleven billion, two hundred twelve million, two hundred twelve thousand, two hundred one".