2111112110999 has 2 divisors, whose sum is σ = 2111112111000. Its totient is φ = 2111112110998.

The previous prime is 2111112110981. The next prime is 2111112111007. The reversal of 2111112110999 is 9990112111112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111112110999 - 2¹⁶ = 2111112045463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111112110099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055556055499 + 1055556055500.

It is an arithmetic number, because the mean of its divisors is an integer number (1055556055500).

Almost surely, 2^{2111112110999} is an apocalyptic number.

2111112110999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111112110999 is an equidigital number, since it uses as much as digits as its factorization.

2111112110999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 38.

The spelling of 2111112110999 in words is "two trillion, one hundred eleven billion, one hundred twelve million, one hundred ten thousand, nine hundred ninety-nine".