2221202212189 has 2 divisors, whose sum is σ = 2221202212190. Its totient is φ = 2221202212188.

The previous prime is 2221202212181. The next prime is 2221202212247. The reversal of 2221202212189 is 9812122021222.

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., 2092781756025 + 128420456164 = 1446645^2 + 358358^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221202212189 - 2³ = 2221202212181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221202212181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110601106094 + 1110601106095.

It is an arithmetic number, because the mean of its divisors is an integer number (1110601106095).

Almost surely, 2^{2221202212189} is an apocalyptic number.

It is an amenable number.

2221202212189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221202212189 is an equidigital number, since it uses as much as digits as its factorization.

2221202212189 is an evil number, because the sum of its binary digits is even.

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

The spelling of 2221202212189 in words is "two trillion, two hundred twenty-one billion, two hundred two million, two hundred twelve thousand, one hundred eighty-nine".