2011222211011 has 64 divisors (see below), whose sum is σ = 2442044650752. Its totient is φ = 1637217533952.

The previous prime is 2011222210997. The next prime is 2011222211023. The reversal of 2011222211011 is 1101122221102.

It is not a de Polignac number, because 2011222211011 - 2¹³ = 2011222202819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011222211081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181299981 + ... + 181311073.

It is an arithmetic number, because the mean of its divisors is an integer number (38156947668).

Almost surely, 2^{2011222211011} is an apocalyptic number.

2011222211011 is a deficient number, since it is larger than the sum of its proper divisors (430822439741).

2011222211011 is a wasteful number, since it uses less digits than its factorization.

2011222211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11872.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2011222211011 its reverse (1101122221102), we get a palindrome (3112344432113).

It can be divided in two parts, 201122221101 and 1, that added together give a palindrome (201122221102).

The spelling of 2011222211011 in words is "two trillion, eleven billion, two hundred twenty-two million, two hundred eleven thousand, eleven".