111200212120122 has 24 divisors (see below), whose sum is σ = 246536904392064. Its totient is φ = 36204720224904.

The previous prime is 111200212120069. The next prime is 111200212120187. The reversal of 111200212120122 is 221021212002111.

111200212120122 is a `hidden beast` number, since 1 + 11 + 200 + 212 + 120 + 122 = 666.

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 = 111200212120095 and 111200212120104.

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, 71834761578 + ... + 71834763125.

It is an arithmetic number, because the mean of its divisors is an integer number (10272371016336).

Almost surely, 2^{111200212120122} is an apocalyptic number.

111200212120122 is an abundant number, since it is smaller than the sum of its proper divisors (135336692271942).

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

111200212120122 is a wasteful number, since it uses less digits than its factorization.

111200212120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143669524754 (or 143669524751 counting only the distinct ones).

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

Adding to 111200212120122 its reverse (221021212002111), we get a palindrome (332221424122233).

The spelling of 111200212120122 in words is "one hundred eleven trillion, two hundred billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-two".