111112211220239 has 2 divisors, whose sum is σ = 111112211220240. Its totient is φ = 111112211220238.

The previous prime is 111112211220217. The next prime is 111112211220247. The reversal of 111112211220239 is 932022112211111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111112211220239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111112211220209) 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, 55556105610119 + 55556105610120.

It is an arithmetic number, because the mean of its divisors is an integer number (55556105610120).

Almost surely, 2^{111112211220239} is an apocalyptic number.

111112211220239 is a deficient number, since it is larger than the sum of its proper divisors (1).

111112211220239 is an equidigital number, since it uses as much as digits as its factorization.

111112211220239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 111112211220239 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty thousand, two hundred thirty-nine".