20111102111022 has 16 divisors (see below), whose sum is σ = 43316219931600. Its totient is φ = 6188031418752.

The previous prime is 20111102111021. The next prime is 20111102111053. The reversal of 20111102111022 is 22011120111102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20111102110992 and 20111102111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111102111021) 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 7 ways as a sum of consecutive naturals, for example, 128917321147 + ... + 128917321302.

It is an arithmetic number, because the mean of its divisors is an integer number (2707263745725).

Almost surely, 2^{20111102111022} is an apocalyptic number.

20111102111022 is an abundant number, since it is smaller than the sum of its proper divisors (23205117820578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111102111022 is a wasteful number, since it uses less digits than its factorization.

20111102111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257834642467.

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

Adding to 20111102111022 its reverse (22011120111102), we get a palindrome (42122222222124).

The spelling of 20111102111022 in words is "twenty trillion, one hundred eleven billion, one hundred two million, one hundred eleven thousand, twenty-two".