120111200100111 has 16 divisors (see below), whose sum is σ = 174710343168000. Its totient is φ = 72793357134720.

The previous prime is 120111200100103. The next prime is 120111200100131. The reversal of 120111200100111 is 111001002111021.

It is not a de Polignac number, because 120111200100111 - 2³ = 120111200100103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111200100131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30876111 + ... + 34547888.

It is an arithmetic number, because the mean of its divisors is an integer number (10919396448000).

Almost surely, 2^{120111200100111} is an apocalyptic number.

120111200100111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120111200100111 is a deficient number, since it is larger than the sum of its proper divisors (54599143067889).

120111200100111 is a wasteful number, since it uses less digits than its factorization.

120111200100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65479646.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 120111200100111 its reverse (111001002111021), we get a palindrome (231112202211132).

The spelling of 120111200100111 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred million, one hundred thousand, one hundred eleven".