1100111010012 has 72 divisors (see below), whose sum is σ = 3178690185216. Its totient is φ = 314258910624.

The previous prime is 1100111009999. The next prime is 1100111010013. The reversal of 1100111010012 is 2100101110011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1100111009976 and 1100111010003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100111010013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 958873 + ... + 1766255.

Almost surely, 2^{1100111010012} is an apocalyptic number.

1100111010012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100111010012 is an abundant number, since it is smaller than the sum of its proper divisors (2078579175204).

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

1100111010012 is a wasteful number, since it uses less digits than its factorization.

1100111010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812807 (or 812802 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1100111010012 its reverse (2100101110011), we get a palindrome (3200212120023).

Subtracting 1100111010012 from its reverse (2100101110011), we obtain a palindrome (999990099999).

The spelling of 1100111010012 in words is "one trillion, one hundred billion, one hundred eleven million, ten thousand, twelve".