111100112120001 has 16 divisors (see below), whose sum is σ = 152137398089600. Its totient is φ = 72064791877248.

The previous prime is 111100112119981. The next prime is 111100112120047. The reversal of 111100112120001 is 100021211001111.

It is not a de Polignac number, because 111100112120001 - 2⁹ = 111100112119489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111100112920001) 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, 94888020 + ... + 96051738.

It is an arithmetic number, because the mean of its divisors is an integer number (9508587380600).

Almost surely, 2^{111100112120001} is an apocalyptic number.

It is an amenable number.

111100112120001 is a deficient number, since it is larger than the sum of its proper divisors (41037285969599).

111100112120001 is a wasteful number, since it uses less digits than its factorization.

111100112120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023848.

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

Adding to 111100112120001 its reverse (100021211001111), we get a palindrome (211121323121112).

The spelling of 111100112120001 in words is "one hundred eleven trillion, one hundred billion, one hundred twelve million, one hundred twenty thousand, one".