111112100650020 has 192 divisors, whose sum is σ = 314010921369600. Its totient is φ = 29355270228480.

The previous prime is 111112100649943. The next prime is 111112100650051. The reversal of 111112100650020 is 20056001211111.

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 63 ways as a sum of consecutive naturals, for example, 5733624691 + ... + 5733644069.

It is an arithmetic number, because the mean of its divisors is an integer number (1635473548800).

Almost surely, 2^{111112100650020} is an apocalyptic number.

111112100650020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112100650020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157005460684800).

111112100650020 is an abundant number, since it is smaller than the sum of its proper divisors (202898820719580).

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

111112100650020 is a wasteful number, since it uses less digits than its factorization.

111112100650020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21418 (or 21416 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 21.

Adding to 111112100650020 its reverse (20056001211111), we get a palindrome (131168101861131).

The spelling of 111112100650020 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred million, six hundred fifty thousand, twenty".