211120122222011 has 2 divisors, whose sum is σ = 211120122222012. Its totient is φ = 211120122222010.

The previous prime is 211120122222001. The next prime is 211120122222041. The reversal of 211120122222011 is 110222221021112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211120122222011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (211120122222001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560061111005 + 105560061111006.

It is an arithmetic number, because the mean of its divisors is an integer number (105560061111006).

Almost surely, 2^{211120122222011} is an apocalyptic number.

211120122222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211120122222011 is an equidigital number, since it uses as much as digits as its factorization.

211120122222011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211120122222011 its reverse (110222221021112), we get a palindrome (321342343243123).

The spelling of 211120122222011 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, eleven".