111111000121199 has 4 divisors (see below), whose sum is σ = 119658000130536. Its totient is φ = 102564000111864.

The previous prime is 111111000121171. The next prime is 111111000121213. The reversal of 111111000121199 is 991121000111111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111111000121199 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 (111111000121799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4273500004649 + ... + 4273500004674.

It is an arithmetic number, because the mean of its divisors is an integer number (29914500032634).

Almost surely, 2^{111111000121199} is an apocalyptic number.

111111000121199 is a deficient number, since it is larger than the sum of its proper divisors (8547000009337).

111111000121199 is an equidigital number, since it uses as much as digits as its factorization.

111111000121199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8547000009336.

The product of its (nonzero) digits is 162, while the sum is 29.

The spelling of 111111000121199 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twenty-one thousand, one hundred ninety-nine".