211120122222211 has 4 divisors (see below), whose sum is σ = 218400126436800. Its totient is φ = 203840118007624.

The previous prime is 211120122222137. The next prime is 211120122222257. The reversal of 211120122222211 is 112222221021112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211120122222211 - 2⁹ = 211120122221699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211120122222011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3640002107251 + ... + 3640002107308.

It is an arithmetic number, because the mean of its divisors is an integer number (54600031609200).

Almost surely, 2^{211120122222211} is an apocalyptic number.

211120122222211 is a deficient number, since it is larger than the sum of its proper divisors (7280004214589).

211120122222211 is an equidigital number, since it uses as much as digits as its factorization.

211120122222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7280004214588.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211120122222211 its reverse (112222221021112), we get a palindrome (323342343243323).

The spelling of 211120122222211 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".