111100001012 has 192 divisors, whose sum is σ = 266787924480. Its totient is φ = 39084595200.

The previous prime is 111100001011. The next prime is 111100001017. The reversal of 111100001012 is 210100001111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100001011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48114914 + ... + 48117222.

It is an arithmetic number, because the mean of its divisors is an integer number (1389520440).

Almost surely, 2^111100001012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100001012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133393962240).

111100001012 is an abundant number, since it is smaller than the sum of its proper divisors (155687923468).

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

111100001012 is a wasteful number, since it uses less digits than its factorization.

111100001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602 (or 2600 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111100001012 its reverse (210100001111), we get a palindrome (321200002123).

Subtracting 111100001012 from its reverse (210100001111), we obtain a palindrome (99000000099).

The spelling of 111100001012 in words is "one hundred eleven billion, one hundred million, one thousand, twelve".