1110111221111 has 2 divisors, whose sum is σ = 1110111221112. Its totient is φ = 1110111221110.

The previous prime is 1110111221047. The next prime is 1110111221147. The reversal of 1110111221111 is 1111221110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1110111221111 - 2⁶ = 1110111221047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110111221171) 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, 555055610555 + 555055610556.

It is an arithmetic number, because the mean of its divisors is an integer number (555055610556).

Almost surely, 2^{1110111221111} is an apocalyptic number.

1110111221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111221111 is an equidigital number, since it uses as much as digits as its factorization.

1110111221111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 1110111221111 its reverse (1111221110111), we get a palindrome (2221332331222).

The spelling of 1110111221111 in words is "one trillion, one hundred ten billion, one hundred eleven million, two hundred twenty-one thousand, one hundred eleven".