20112122110011 has 16 divisors (see below), whose sum is σ = 28014708771840. Its totient is φ = 12819230566560.

The previous prime is 20112122109941. The next prime is 20112122110013. The reversal of 20112122110011 is 11001122121102.

It is a happy number.

It is not a de Polignac number, because 20112122110011 - 2⁷ = 20112122109883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20112122110013) 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 15 ways as a sum of consecutive naturals, for example, 1302759616 + ... + 1302775053.

It is an arithmetic number, because the mean of its divisors is an integer number (1750919298240).

Almost surely, 2^{20112122110011} is an apocalyptic number.

20112122110011 is a deficient number, since it is larger than the sum of its proper divisors (7902586661829).

20112122110011 is a wasteful number, since it uses less digits than its factorization.

20112122110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605534786.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20112122110011 its reverse (11001122121102), we get a palindrome (31113244231113).

The spelling of 20112122110011 in words is "twenty trillion, one hundred twelve billion, one hundred twenty-two million, one hundred ten thousand, eleven".