2123110222011 has 6 divisors (see below), whose sum is σ = 3066714765140. Its totient is φ = 1415406814668.

The previous prime is 2123110221977. The next prime is 2123110222159. The reversal of 2123110222011 is 1102220113212.

It is not a de Polignac number, because 2123110222011 - 2¹¹ = 2123110219963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123110226011) 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 5 ways as a sum of consecutive naturals, for example, 117950567881 + ... + 117950567898.

Almost surely, 2^{2123110222011} is an apocalyptic number.

2123110222011 is a deficient number, since it is larger than the sum of its proper divisors (943604543129).

2123110222011 is a wasteful number, since it uses less digits than its factorization.

2123110222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235901135785 (or 235901135782 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2123110222011 its reverse (1102220113212), we get a palindrome (3225330335223).

The spelling of 2123110222011 in words is "two trillion, one hundred twenty-three billion, one hundred ten million, two hundred twenty-two thousand, eleven".