11212120212201 has 32 divisors (see below), whose sum is σ = 17336436203520. Its totient is φ = 7148235699792.

The previous prime is 11212120212151. The next prime is 11212120212211. The reversal of 11212120212201 is 10221202121211.

11212120212201 is a `hidden beast` number, since 112 + 121 + 20 + 212 + 201 = 666.

It is not a de Polignac number, because 11212120212201 - 2¹⁴ = 11212120195817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212120212211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1001050 + ... + 4840076.

It is an arithmetic number, because the mean of its divisors is an integer number (541763631360).

Almost surely, 2^{11212120212201} is an apocalyptic number.

It is an amenable number.

11212120212201 is a deficient number, since it is larger than the sum of its proper divisors (6124315991319).

11212120212201 is a wasteful number, since it uses less digits than its factorization.

11212120212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843762 (or 3843756 counting only the distinct ones).

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

Adding to 11212120212201 its reverse (10221202121211), we get a palindrome (21433322333412).

The spelling of 11212120212201 in words is "eleven trillion, two hundred twelve billion, one hundred twenty million, two hundred twelve thousand, two hundred one".