1100100111012 has 120 divisors (see below), whose sum is σ = 3480055375104. Its totient is φ = 295825229568.

The previous prime is 1100100110981. The next prime is 1100100111041. The reversal of 1100100111012 is 2101110010011.

It is a super-2 number, since 2×1100100111012² (a number of 25 digits) contains 22 as substring.

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 = 1100100110985 and 1100100111003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14227708 + ... + 14304819.

Almost surely, 2^{1100100111012} is an apocalyptic number.

1100100111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1100100111012 is an abundant number, since it is smaller than the sum of its proper divisors (2379955264092).

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

1100100111012 is a wasteful number, since it uses less digits than its factorization.

1100100111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28532567 (or 28532556 counting only the distinct ones).

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

Adding to 1100100111012 its reverse (2101110010011), we get a palindrome (3201210121023).

The spelling of 1100100111012 in words is "one trillion, one hundred billion, one hundred million, one hundred eleven thousand, twelve".