1002211222189 has 2 divisors, whose sum is σ = 1002211222190. Its totient is φ = 1002211222188.

The previous prime is 1002211222171. The next prime is 1002211222211. The reversal of 1002211222189 is 9812221122001.

1002211222189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 595783296900 + 406427925289 = 771870^2 + 637517^2 .

It is an emirp because it is prime and its reverse (9812221122001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002211222189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002211222189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002211220189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501105611094 + 501105611095.

It is an arithmetic number, because the mean of its divisors is an integer number (501105611095).

Almost surely, 2^{1002211222189} is an apocalyptic number.

It is an amenable number.

1002211222189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002211222189 is an equidigital number, since it uses as much as digits as its factorization.

1002211222189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 1002211222189 in words is "one trillion, two billion, two hundred eleven million, two hundred twenty-two thousand, one hundred eighty-nine".