111101211101112 has 64 divisors (see below), whose sum is σ = 279625705524000. Its totient is φ = 36784061890560.

The previous prime is 111101211101107. The next prime is 111101211101131. The reversal of 111101211101112 is 211101112101111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111101211101091 and 111101211101100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120613812 + ... + 121531452.

Almost surely, 2^{111101211101112} is an apocalyptic number.

111101211101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111101211101112 is an abundant number, since it is smaller than the sum of its proper divisors (168524494422888).

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

111101211101112 is a wasteful number, since it uses less digits than its factorization.

111101211101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951656 (or 951652 counting only the distinct ones).

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

Adding to 111101211101112 its reverse (211101112101111), we get a palindrome (322202323202223).

Subtracting 111101211101112 from its reverse (211101112101111), we obtain a palindrome (99999900999999).

The spelling of 111101211101112 in words is "one hundred eleven trillion, one hundred one billion, two hundred eleven million, one hundred one thousand, one hundred twelve".