12220121122189 has 2 divisors, whose sum is σ = 12220121122190. Its totient is φ = 12220121122188.

The previous prime is 12220121122169. The next prime is 12220121122277. The reversal of 12220121122189 is 98122112102221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6971976202500 + 5248144919689 = 2640450^2 + 2290883^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220121122189 - 2²³ = 12220112733581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220121122169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110060561094 + 6110060561095.

It is an arithmetic number, because the mean of its divisors is an integer number (6110060561095).

Almost surely, 2^{12220121122189} is an apocalyptic number.

It is an amenable number.

12220121122189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220121122189 is an equidigital number, since it uses as much as digits as its factorization.

12220121122189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 12220121122189 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred eighty-nine".