12001113212211 has 24 divisors (see below), whose sum is σ = 17367856131600. Its totient is φ = 7985553656256.

The previous prime is 12001113212203. The next prime is 12001113212239. The reversal of 12001113212211 is 11221231110021.

It is a happy number.

12001113212211 is a `hidden beast` number, since 1 + 20 + 0 + 111 + 321 + 2 + 211 = 666.

It is not a de Polignac number, because 12001113212211 - 2³ = 12001113212203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001113212111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50507761 + ... + 50744813.

It is an arithmetic number, because the mean of its divisors is an integer number (723660672150).

Almost surely, 2^{12001113212211} is an apocalyptic number.

12001113212211 is a deficient number, since it is larger than the sum of its proper divisors (5366742919389).

12001113212211 is a wasteful number, since it uses less digits than its factorization.

12001113212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247715 (or 247712 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12001113212211 its reverse (11221231110021), we get a palindrome (23222344322232).

The spelling of 12001113212211 in words is "twelve trillion, one billion, one hundred thirteen million, two hundred twelve thousand, two hundred eleven".