111100000122100 has 72 divisors (see below), whose sum is σ = 264325628952000. Its totient is φ = 40196984889600.

The previous prime is 111100000122077. The next prime is 111100000122233. The reversal of 111100000122100 is 1221000001111.

It is a Harshad number since it is a multiple of its sum of digits (10).

111100000122100 is a modest number, since divided by 122100 gives 111100 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253549945 + ... + 253987744.

It is an arithmetic number, because the mean of its divisors is an integer number (3671189291000).

Almost surely, 2^{111100000122100} is an apocalyptic number.

111100000122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100000122100 is an abundant number, since it is smaller than the sum of its proper divisors (153225628829900).

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

111100000122100 is a wasteful number, since it uses less digits than its factorization.

111100000122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507537913 (or 507537906 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111100000122100 its reverse (1221000001111), we get a palindrome (112321000123211).

The spelling of 111100000122100 in words is "one hundred eleven trillion, one hundred billion, one hundred twenty-two thousand, one hundred".