111101200021122 has 64 divisors (see below), whose sum is σ = 229570400378880. Its totient is φ = 35818277229504.

The previous prime is 111101200021117. The next prime is 111101200021187. The reversal of 111101200021122 is 221120002101111.

It is a happy number.

It is a super-2 number, since 2×111101200021122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 24977779 + ... + 29087657.

It is an arithmetic number, because the mean of its divisors is an integer number (3587037505920).

Almost surely, 2^{111101200021122} is an apocalyptic number.

111101200021122 is an abundant number, since it is smaller than the sum of its proper divisors (118469200357758).

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

111101200021122 is a wasteful number, since it uses less digits than its factorization.

111101200021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110647.

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

Adding to 111101200021122 its reverse (221120002101111), we get a palindrome (332221202122233).

The spelling of 111101200021122 in words is "one hundred eleven trillion, one hundred one billion, two hundred million, twenty-one thousand, one hundred twenty-two".