111020101121112 has 128 divisors (see below), whose sum is σ = 290938488422400. Its totient is φ = 35259948662400.

The previous prime is 111020101120961. The next prime is 111020101121147. The reversal of 111020101121112 is 211121101020111.

It is a junction number, because it is equal to n+sod(n) for n = 111020101121091 and 111020101121100.

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, 36957589 + ... + 39848507.

It is an arithmetic number, because the mean of its divisors is an integer number (2272956940800).

Almost surely, 2^{111020101121112} is an apocalyptic number.

111020101121112 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 111020101121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145469244211200).

111020101121112 is an abundant number, since it is smaller than the sum of its proper divisors (179918387301288).

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

111020101121112 is a wasteful number, since it uses less digits than its factorization.

111020101121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891757 (or 2891753 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111020101121112 its reverse (211121101020111), we get a palindrome (322141202141223).

The spelling of 111020101121112 in words is "one hundred eleven trillion, twenty billion, one hundred one million, one hundred twenty-one thousand, one hundred twelve".