111000121012100 has 36 divisors (see below), whose sum is σ = 241201583610624. Its totient is φ = 44338975406880.

The previous prime is 111000121012073. The next prime is 111000121012111. The reversal of 111000121012100 is 1210121000111.

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 11 ways as a sum of consecutive naturals, for example, 763339412 + ... + 763484811.

It is an arithmetic number, because the mean of its divisors is an integer number (6700043989184).

Almost surely, 2^{111000121012100} is an apocalyptic number.

111000121012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111000121012100 is an abundant number, since it is smaller than the sum of its proper divisors (130201462598524).

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

111000121012100 is a wasteful number, since it uses less digits than its factorization.

111000121012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526824964 (or 1526824957 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111000121012100 its reverse (1210121000111), we get a palindrome (112210242012211).

The spelling of 111000121012100 in words is "one hundred eleven trillion, one hundred twenty-one million, twelve thousand, one hundred".