111100121001111 has 24 divisors (see below), whose sum is σ = 167225079772912. Its totient is φ = 65513584857600.

The previous prime is 111100121001083. The next prime is 111100121001113.

111100121001111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111100121001111 - 2⁹ = 111100121000599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100121001113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4135945210 + ... + 4135972071.

Almost surely, 2^{111100121001111} is an apocalyptic number.

111100121001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111100121001111 is a deficient number, since it is larger than the sum of its proper divisors (56124958771801).

111100121001111 is a wasteful number, since it uses less digits than its factorization.

111100121001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8271917343 (or 8271917332 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

The spelling of 111100121001111 in words is "one hundred eleven trillion, one hundred billion, one hundred twenty-one million, one thousand, one hundred eleven".