2111200111211 has 2 divisors, whose sum is σ = 2111200111212. Its totient is φ = 2111200111210.

The previous prime is 2111200111169. The next prime is 2111200111243. The reversal of 2111200111211 is 1121110021112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111200111211 - 2¹⁸ = 2111199849067 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111200111261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055600055605 + 1055600055606.

It is an arithmetic number, because the mean of its divisors is an integer number (1055600055606).

Almost surely, 2^{2111200111211} is an apocalyptic number.

2111200111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111200111211 is an equidigital number, since it uses as much as digits as its factorization.

2111200111211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2111200111211 its reverse (1121110021112), we get a palindrome (3232310132323).

Subtracting from 2111200111211 its reverse (1121110021112), we obtain a palindrome (990090090099).

The spelling of 2111200111211 in words is "two trillion, one hundred eleven billion, two hundred million, one hundred eleven thousand, two hundred eleven".