212201122012011 has 36 divisors (see below), whose sum is σ = 356728964502456. Its totient is φ = 121041638213760.

The previous prime is 212201122012007. The next prime is 212201122012013. The reversal of 212201122012011 is 110210221102212.

212201122012011 is a `hidden beast` number, since 21 + 220 + 1 + 1 + 220 + 1 + 201 + 1 = 666.

It is not a de Polignac number, because 212201122012011 - 2² = 212201122012007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212201122012013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5731119661 + ... + 5731156686.

It is an arithmetic number, because the mean of its divisors is an integer number (9909137902846).

Almost surely, 2^{212201122012011} is an apocalyptic number.

212201122012011 is a deficient number, since it is larger than the sum of its proper divisors (144527842490445).

212201122012011 is a wasteful number, since it uses less digits than its factorization.

212201122012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11462276392 (or 11462276378 counting only the distinct ones).

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

Adding to 212201122012011 its reverse (110210221102212), we get a palindrome (322411343114223).

The spelling of 212201122012011 in words is "two hundred twelve trillion, two hundred one billion, one hundred twenty-two million, twelve thousand, eleven".