1011111211199 has 2 divisors, whose sum is σ = 1011111211200. Its totient is φ = 1011111211198.

The previous prime is 1011111211193. The next prime is 1011111211291. The reversal of 1011111211199 is 9911121111101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011111211199 - 2¹⁶ = 1011111145663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011111211193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505555605599 + 505555605600.

It is an arithmetic number, because the mean of its divisors is an integer number (505555605600).

Almost surely, 2^{1011111211199} is an apocalyptic number.

1011111211199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011111211199 is an equidigital number, since it uses as much as digits as its factorization.

1011111211199 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 1011111211199 in words is "one trillion, eleven billion, one hundred eleven million, two hundred eleven thousand, one hundred ninety-nine".