111100110020 has 24 divisors (see below), whose sum is σ = 233317977984. Its totient is φ = 44438568416.

The previous prime is 111100109993. The next prime is 111100110061. The reversal of 111100110020 is 20011001111.

It is a happy number.

It is a super-2 number, since 2×111100110020² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684869 + ... + 831411.

It is an arithmetic number, because the mean of its divisors is an integer number (9721582416).

Almost surely, 2^111100110020 is an apocalyptic number.

111100110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100110020 is an abundant number, since it is smaller than the sum of its proper divisors (122217867964).

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

111100110020 is a wasteful number, since it uses less digits than its factorization.

111100110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184459 (or 184457 counting only the distinct ones).

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

Adding to 111100110020 its reverse (20011001111), we get a palindrome (131111111131).

The spelling of 111100110020 in words is "one hundred eleven billion, one hundred million, one hundred ten thousand, twenty".