2211222221189 has 2 divisors, whose sum is σ = 2211222221190. Its totient is φ = 2211222221188.

The previous prime is 2211222220997. The next prime is 2211222221191. The reversal of 2211222221189 is 9811222221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2210544504100 + 677717089 = 1486790^2 + 26033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211222221189 is a prime.

It is a super-2 number, since 2×2211222221189² (a number of 25 digits) contains 22 as substring.

Together with 2211222221191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211222211189) 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, 1105611110594 + 1105611110595.

It is an arithmetic number, because the mean of its divisors is an integer number (1105611110595).

Almost surely, 2^{2211222221189} is an apocalyptic number.

It is an amenable number.

2211222221189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211222221189 is an equidigital number, since it uses as much as digits as its factorization.

2211222221189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 35.

The spelling of 2211222221189 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred eighty-nine".