111188222881111 has 2 divisors, whose sum is σ = 111188222881112. Its totient is φ = 111188222881110.

The previous prime is 111188222881103. The next prime is 111188222881129.

111188222881111 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 111188222881111 - 2³ = 111188222881103 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111188222881171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55594111440555 + 55594111440556.

It is an arithmetic number, because the mean of its divisors is an integer number (55594111440556).

Almost surely, 2^{111188222881111} is an apocalyptic number.

111188222881111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111188222881111 is an equidigital number, since it uses as much as digits as its factorization.

111188222881111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32768, while the sum is 46.

The spelling of 111188222881111 in words is "one hundred eleven trillion, one hundred eighty-eight billion, two hundred twenty-two million, eight hundred eighty-one thousand, one hundred eleven".