111011122120100 has 72 divisors (see below), whose sum is σ = 254018422509600. Its totient is φ = 41993440070400.

The previous prime is 111011122120027. The next prime is 111011122120141. The reversal of 111011122120100 is 1021221110111.

It is a super-3 number, since 3×111011122120100³ (a number of 43 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 50260646 + ... + 52422845.

Almost surely, 2^{111011122120100} is an apocalyptic number.

111011122120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111011122120100 is an abundant number, since it is smaller than the sum of its proper divisors (143007300389500).

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

111011122120100 is a wasteful number, since it uses less digits than its factorization.

111011122120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102684093 (or 102684086 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111011122120100 its reverse (1021221110111), we get a palindrome (112032343230211).

The spelling of 111011122120100 in words is "one hundred eleven trillion, eleven billion, one hundred twenty-two million, one hundred twenty thousand, one hundred".