111111221119 has 2 divisors, whose sum is σ = 111111221120. Its totient is φ = 111111221118.

The previous prime is 111111221083. The next prime is 111111221153. The reversal of 111111221119 is 911122111111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111111221119 - 2¹⁷ = 111111090047 is a prime.

It is a super-2 number, since 2×111111221119² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111111221119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111111221219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555610559 + 55555610560.

It is an arithmetic number, because the mean of its divisors is an integer number (55555610560).

Almost surely, 2^111111221119 is an apocalyptic number.

111111221119 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111221119 is an equidigital number, since it uses as much as digits as its factorization.

111111221119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 22.

The spelling of 111111221119 in words is "one hundred eleven billion, one hundred eleven million, two hundred twenty-one thousand, one hundred nineteen".