111102122212101 has 80 divisors (see below), whose sum is σ = 181246025917440. Its totient is φ = 67552391923200.

The previous prime is 111102122212099. The next prime is 111102122212157. The reversal of 111102122212101 is 101212221201111.

It is a happy number.

111102122212101 is a `hidden beast` number, since 1 + 11 + 10 + 212 + 221 + 210 + 1 = 666.

111102122212101 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 111102122212101 - 2¹ = 111102122212099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102122212171) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1961821 + ... + 15035058.

It is an arithmetic number, because the mean of its divisors is an integer number (2265575323968).

Almost surely, 2^{111102122212101} is an apocalyptic number.

It is an amenable number.

111102122212101 is a deficient number, since it is larger than the sum of its proper divisors (70143903705339).

111102122212101 is a wasteful number, since it uses less digits than its factorization.

111102122212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16997056 (or 16997047 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111102122212101 its reverse (101212221201111), we get a palindrome (212314343413212).

The spelling of 111102122212101 in words is "one hundred eleven trillion, one hundred two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred one".