111022121120112 has 160 divisors (see below), whose sum is σ = 319524684111360. Its totient is φ = 36908754992640.

The previous prime is 111022121120093. The next prime is 111022121120123. The reversal of 111022121120112 is 211021121220111.

It is a happy number.

111022121120112 is a `hidden beast` number, since 11 + 10 + 221 + 211 + 201 + 12 = 666.

It is a super-2 number, since 2×111022121120112² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321642883 + ... + 321987869.

It is an arithmetic number, because the mean of its divisors is an integer number (1997029275696).

Almost surely, 2^{111022121120112} is an apocalyptic number.

111022121120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111022121120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159762342055680).

111022121120112 is an abundant number, since it is smaller than the sum of its proper divisors (208502562991248).

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

111022121120112 is a wasteful number, since it uses less digits than its factorization.

111022121120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346988 (or 346976 counting only the distinct ones).

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

Adding to 111022121120112 its reverse (211021121220111), we get a palindrome (322043242340223).

Subtracting 111022121120112 from its reverse (211021121220111), we obtain a palindrome (99999000099999).

The spelling of 111022121120112 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, one hundred twelve".