111112011012 has 12 divisors (see below), whose sum is σ = 259261359056. Its totient is φ = 37037337000.

The previous prime is 111112011011. The next prime is 111112011013. The reversal of 111112011012 is 210110211111.

It is an interprime number because it is at equal distance from previous prime (111112011011) and next prime (111112011013).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×111112011012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 9259334251 = 111112011012 / (1 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (111112011011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4629667114 + ... + 4629667137.

Almost surely, 2^111112011012 is an apocalyptic number.

111112011012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111112011012 is an abundant number, since it is smaller than the sum of its proper divisors (148149348044).

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

111112011012 is a wasteful number, since it uses less digits than its factorization.

111112011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259334258 (or 9259334256 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111112011012 its reverse (210110211111), we get a palindrome (321222222123).

The spelling of 111112011012 in words is "one hundred eleven billion, one hundred twelve million, eleven thousand, twelve".