2011220011 has 2 divisors, whose sum is σ = 2011220012. Its totient is φ = 2011220010.

The previous prime is 2011220009. The next prime is 2011220023. The reversal of 2011220011 is 1100221102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011220011 - 2¹ = 2011220009 is a prime.

Together with 2011220009, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2011220011.

It is not a weakly prime, because it can be changed into another prime (2011220041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005610005 + 1005610006.

It is an arithmetic number, because the mean of its divisors is an integer number (1005610006).

Almost surely, 2^2011220011 is an apocalyptic number.

2011220011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011220011 is an equidigital number, since it uses as much as digits as its factorization.

2011220011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2011220011 is about 44846.6276435587. The cubic root of 2011220011 is about 1262.2727124218.

Adding to 2011220011 its reverse (1100221102), we get a palindrome (3111441113).

The spelling of 2011220011 in words is "two billion, eleven million, two hundred twenty thousand, eleven".