111222220189 has 2 divisors, whose sum is σ = 111222220190. Its totient is φ = 111222220188.

The previous prime is 111222220147. The next prime is 111222220229. The reversal of 111222220189 is 981022222111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106282520100 + 4939700089 = 326010^2 + 70283^2 .

It is a cyclic number.

It is not a de Polignac number, because 111222220189 - 2⁹ = 111222219677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111222220189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111222220139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611110094 + 55611110095.

It is an arithmetic number, because the mean of its divisors is an integer number (55611110095).

Almost surely, 2^111222220189 is an apocalyptic number.

It is an amenable number.

111222220189 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222220189 is an equidigital number, since it uses as much as digits as its factorization.

111222220189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 111222220189 in words is "one hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, one hundred eighty-nine".