111211112020112 has 320 divisors, whose sum is σ = 251016568911360. Its totient is φ = 47347498598400.

The previous prime is 111211112020087. The next prime is 111211112020121. The reversal of 111211112020112 is 211020211112111.

It is a super-2 number, since 2×111211112020112² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7169814437 + ... + 7169829947.

It is an arithmetic number, because the mean of its divisors is an integer number (784426777848).

Almost surely, 2^{111211112020112} 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 111211112020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125508284455680).

111211112020112 is an abundant number, since it is smaller than the sum of its proper divisors (139805456891248).

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

111211112020112 is a wasteful number, since it uses less digits than its factorization.

111211112020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16202 (or 16196 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111211112020112 its reverse (211020211112111), we get a palindrome (322231323132223).

The spelling of 111211112020112 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twelve million, twenty thousand, one hundred twelve".