111020112112 has 160 divisors (see below), whose sum is σ = 274482432000. Its totient is φ = 42310646784.

The previous prime is 111020112089. The next prime is 111020112113. The reversal of 111020112112 is 211211020111.

It is a happy number.

It is a super-2 number, since 2×111020112112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 111020112092 and 111020112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020112113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20560389 + ... + 20565787.

It is an arithmetic number, because the mean of its divisors is an integer number (1715515200).

Almost surely, 2^111020112112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111020112112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137241216000).

111020112112 is an abundant number, since it is smaller than the sum of its proper divisors (163462319888).

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

111020112112 is a wasteful number, since it uses less digits than its factorization.

111020112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5943 (or 5937 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111020112112 its reverse (211211020111), we get a palindrome (322231132223).

The spelling of 111020112112 in words is "one hundred eleven billion, twenty million, one hundred twelve thousand, one hundred twelve".