2112221201211 has 48 divisors (see below), whose sum is σ = 3446692933632. Its totient is φ = 1234880899200.

The previous prime is 2112221201173. The next prime is 2112221201239. The reversal of 2112221201211 is 1121021222112.

2112221201211 is a `hidden beast` number, since 21 + 12 + 221 + 201 + 211 = 666.

It is not a de Polignac number, because 2112221201211 - 2⁹ = 2112221200699 is a prime.

It is a super-3 number, since 3×2112221201211³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2112221211211) 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 47 ways as a sum of consecutive naturals, for example, 138835 + ... + 2060028.

It is an arithmetic number, because the mean of its divisors is an integer number (71806102784).

Almost surely, 2^{2112221201211} is an apocalyptic number.

2112221201211 is a deficient number, since it is larger than the sum of its proper divisors (1334471732421).

2112221201211 is a wasteful number, since it uses less digits than its factorization.

2112221201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199224 (or 2199221 counting only the distinct ones).

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

Adding to 2112221201211 its reverse (1121021222112), we get a palindrome (3233242423323).

The spelling of 2112221201211 in words is "two trillion, one hundred twelve billion, two hundred twenty-one million, two hundred one thousand, two hundred eleven".