12001122201211 has 16 divisors (see below), whose sum is σ = 14104067735520. Its totient is φ = 10067409457920.

The previous prime is 12001122201203. The next prime is 12001122201241. The reversal of 12001122201211 is 11210222110021.

It is a cyclic number.

It is not a de Polignac number, because 12001122201211 - 2³ = 12001122201203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001122201241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14008890 + ... + 14840863.

It is an arithmetic number, because the mean of its divisors is an integer number (881504233470).

Almost surely, 2^{12001122201211} is an apocalyptic number.

12001122201211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12001122201211 is a deficient number, since it is larger than the sum of its proper divisors (2102945534309).

12001122201211 is a wasteful number, since it uses less digits than its factorization.

12001122201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28852686.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12001122201211 its reverse (11210222110021), we get a palindrome (23211344311232).

The spelling of 12001122201211 in words is "twelve trillion, one billion, one hundred twenty-two million, two hundred one thousand, two hundred eleven".