111112022011122 has 160 divisors (see below), whose sum is σ = 277905263074560. Its totient is φ = 32896556218080.

The previous prime is 111112022011091. The next prime is 111112022011147. The reversal of 111112022011122 is 221110220211111.

It is a happy number.

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 = 111112022011095 and 111112022011104.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13895713 + ... + 20379275.

It is an arithmetic number, because the mean of its divisors is an integer number (1736907894216).

Almost surely, 2^{111112022011122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112022011122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138952631537280).

111112022011122 is an abundant number, since it is smaller than the sum of its proper divisors (166793241063438).

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

111112022011122 is a wasteful number, since it uses less digits than its factorization.

111112022011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483810 (or 6483801 counting only the distinct ones).

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

Adding to 111112022011122 its reverse (221110220211111), we get a palindrome (332222242222233).

The spelling of 111112022011122 in words is "one hundred eleven trillion, one hundred twelve billion, twenty-two million, eleven thousand, one hundred twenty-two".