111110022012 has 96 divisors (see below), whose sum is σ = 287354075904. Its totient is φ = 33133772800.

The previous prime is 111110021993. The next prime is 111110022071. The reversal of 111110022012 is 210220011111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2795962 + ... + 2835422.

It is an arithmetic number, because the mean of its divisors is an integer number (2993271624).

Almost surely, 2^111110022012 is an apocalyptic number.

111110022012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111110022012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143677037952).

111110022012 is an abundant number, since it is smaller than the sum of its proper divisors (176244053892).

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

111110022012 is a wasteful number, since it uses less digits than its factorization.

111110022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39819 (or 39817 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111110022012 its reverse (210220011111), we get a palindrome (321330033123).

The spelling of 111110022012 in words is "one hundred eleven billion, one hundred ten million, twenty-two thousand, twelve".