122200189 has 2 divisors, whose sum is σ = 122200190. Its totient is φ = 122200188.

The previous prime is 122200181. The next prime is 122200217. The reversal of 122200189 is 981002221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107122500 + 15077689 = 10350^2 + 3883^2 .

It is a cyclic number.

It is not a de Polignac number, because 122200189 - 2³ = 122200181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122200181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100094 + 61100095.

It is an arithmetic number, because the mean of its divisors is an integer number (61100095).

Almost surely, 2^122200189 is an apocalyptic number.

It is an amenable number.

122200189 is a deficient number, since it is larger than the sum of its proper divisors (1).

122200189 is an equidigital number, since it uses as much as digits as its factorization.

122200189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 122200189 is about 11054.4194329689. The cubic root of 122200189 is about 496.2386947831.

The spelling of 122200189 in words is "one hundred twenty-two million, two hundred thousand, one hundred eighty-nine".