1222222210189 has 2 divisors, whose sum is σ = 1222222210190. Its totient is φ = 1222222210188.

The previous prime is 1222222210163. The next prime is 1222222210243. The reversal of 1222222210189 is 9810122222221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1214503182025 + 7719028164 = 1102045^2 + 87858^2 .

It is an emirp because it is prime and its reverse (9810122222221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222222210189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222222210129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611111105094 + 611111105095.

It is an arithmetic number, because the mean of its divisors is an integer number (611111105095).

Almost surely, 2^{1222222210189} is an apocalyptic number.

It is an amenable number.

1222222210189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222222210189 is an equidigital number, since it uses as much as digits as its factorization.

1222222210189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 1222222210189 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred ten thousand, one hundred eighty-nine".