12120212201211 has 16 divisors (see below), whose sum is σ = 17955924057600. Its totient is φ = 8080117109064.

The previous prime is 12120212201197. The next prime is 12120212201219. The reversal of 12120212201211 is 11210221202121.

12120212201211 is a `hidden beast` number, since 1 + 21 + 20 + 212 + 201 + 211 = 666.

It is not a de Polignac number, because 12120212201211 - 2⁹ = 12120212200699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120212201219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15332970 + ... + 16104048.

It is an arithmetic number, because the mean of its divisors is an integer number (1122245253600).

Almost surely, 2^{12120212201211} is an apocalyptic number.

12120212201211 is a deficient number, since it is larger than the sum of its proper divisors (5835711856389).

12120212201211 is an equidigital number, since it uses as much as digits as its factorization.

12120212201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353255 (or 1353249 counting only the distinct ones).

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

Adding to 12120212201211 its reverse (11210221202121), we get a palindrome (23330433403332).

The spelling of 12120212201211 in words is "twelve trillion, one hundred twenty billion, two hundred twelve million, two hundred one thousand, two hundred eleven".