20201110111122 has 64 divisors (see below), whose sum is σ = 43911338803200. Its totient is φ = 6171996234240.

The previous prime is 20201110111081. The next prime is 20201110111123. The reversal of 20201110111122 is 22111101110202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20201110111123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13714498 + ... + 15115874.

It is an arithmetic number, because the mean of its divisors is an integer number (686114668800).

Almost surely, 2^{20201110111122} is an apocalyptic number.

20201110111122 is an abundant number, since it is smaller than the sum of its proper divisors (23710228692078).

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

20201110111122 is a wasteful number, since it uses less digits than its factorization.

20201110111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405511.

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

Adding to 20201110111122 its reverse (22111101110202), we get a palindrome (42312211221324).

The spelling of 20201110111122 in words is "twenty trillion, two hundred one billion, one hundred ten million, one hundred eleven thousand, one hundred twenty-two".