111211111200199 has 2 divisors, whose sum is σ = 111211111200200. Its totient is φ = 111211111200198.

The previous prime is 111211111200197. The next prime is 111211111200281. The reversal of 111211111200199 is 991002111112111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111211111200199 - 2¹ = 111211111200197 is a prime.

It is a super-2 number, since 2×111211111200199² (a number of 29 digits) contains 22 as substring.

Together with 111211111200197, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111211111200199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111211111200197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605555600099 + 55605555600100.

It is an arithmetic number, because the mean of its divisors is an integer number (55605555600100).

Almost surely, 2^{111211111200199} is an apocalyptic number.

111211111200199 is a deficient number, since it is larger than the sum of its proper divisors (1).

111211111200199 is an equidigital number, since it uses as much as digits as its factorization.

111211111200199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 31.

The spelling of 111211111200199 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred eleven million, two hundred thousand, one hundred ninety-nine".