111121101011112 has 32 divisors (see below), whose sum is σ = 277806415416000. Its totient is φ = 37039878618624.

The previous prime is 111121101011101. The next prime is 111121101011177. The reversal of 111121101011112 is 211110101121111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111121101011091 and 111121101011100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28663612 + ... + 32308587.

It is an arithmetic number, because the mean of its divisors is an integer number (8681450481750).

Almost surely, 2^{111121101011112} is an apocalyptic number.

111121101011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111121101011112 is an abundant number, since it is smaller than the sum of its proper divisors (166685314404888).

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

111121101011112 is a wasteful number, since it uses less digits than its factorization.

111121101011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61048145 (or 61048141 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 111121101011112 its reverse (211110101121111), we get a palindrome (322231202132223).

The spelling of 111121101011112 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred one million, eleven thousand, one hundred twelve".