201110122102122 has 24 divisors (see below), whose sum is σ = 435844129315140. Its totient is φ = 67020471763200.

The previous prime is 201110122102091. The next prime is 201110122102139. The reversal of 201110122102122 is 221201221011102.

It can be written as a sum of positive squares in 2 ways, for example, as 197209809145881 + 3900312956241 = 14043141^2 + 1974921^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201110122102095 and 201110122102104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1352890629 + ... + 1353039272.

Almost surely, 2^{201110122102122} is an apocalyptic number.

201110122102122 is an abundant number, since it is smaller than the sum of its proper divisors (234734007213018).

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

201110122102122 is a wasteful number, since it uses less digits than its factorization.

201110122102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705934038 (or 2705934035 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201110122102122 its reverse (221201221011102), we get a palindrome (422311343113224).

The spelling of 201110122102122 in words is "two hundred one trillion, one hundred ten billion, one hundred twenty-two million, one hundred two thousand, one hundred twenty-two".