122210189 has 4 divisors (see below), whose sum is σ = 123019680. Its totient is φ = 121400700.

The previous prime is 122210183. The next prime is 122210191. The reversal of 122210189 is 981012221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 981012221 = 7 ⋅140144603.

It is a cyclic number.

It is not a de Polignac number, because 122210189 - 2⁴ = 122210173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404519 + ... + 404820.

It is an arithmetic number, because the mean of its divisors is an integer number (30754920).

Almost surely, 2^122210189 is an apocalyptic number.

It is an amenable number.

122210189 is a deficient number, since it is larger than the sum of its proper divisors (809491).

122210189 is an equidigital number, since it uses as much as digits as its factorization.

122210189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809490.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 122210189 is about 11054.8717315037. The cubic root of 122210189 is about 496.2522306367.

It can be divided in two parts, 1222 and 10189, that added together give a palindrome (11411).

The spelling of 122210189 in words is "one hundred twenty-two million, two hundred ten thousand, one hundred eighty-nine".