111012111121112 has 16 divisors (see below), whose sum is σ = 208804325733360. Its totient is φ = 55330957592224.

The previous prime is 111012111121103. The next prime is 111012111121141. The reversal of 111012111121112 is 211121111210111.

It is a happy number.

It is a super-2 number, since 2×111012111121112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21887243348 + ... + 21887248419.

It is an arithmetic number, because the mean of its divisors is an integer number (13050270358335).

Almost surely, 2^{111012111121112} is an apocalyptic number.

It is an amenable number.

111012111121112 is a deficient number, since it is larger than the sum of its proper divisors (97792214612248).

111012111121112 is a wasteful number, since it uses less digits than its factorization.

111012111121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43774492090 (or 43774492086 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 111012111121112 its reverse (211121111210111), we get a palindrome (322133222331223).

The spelling of 111012111121112 in words is "one hundred eleven trillion, twelve billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twelve".