1111112012100 has 36 divisors (see below), whose sum is σ = 3214817422544. Its totient is φ = 296296536480.

The previous prime is 1111112012063. The next prime is 1111112012147. The reversal of 1111112012100 is 12102111111.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1851853054 + ... + 1851853653.

Almost surely, 2^{1111112012100} is an apocalyptic number.

1111112012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111112012100 is an abundant number, since it is smaller than the sum of its proper divisors (2103705410444).

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

1111112012100 is a wasteful number, since it uses less digits than its factorization.

1111112012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703706724 (or 3703706717 counting only the distinct ones).

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

Adding to 1111112012100 its reverse (12102111111), we get a palindrome (1123214123211).

The spelling of 1111112012100 in words is "one trillion, one hundred eleven billion, one hundred twelve million, twelve thousand, one hundred".