1010221189 has 2 divisors, whose sum is σ = 1010221190. Its totient is φ = 1010221188.

The previous prime is 1010221171. The next prime is 1010221229. The reversal of 1010221189 is 9811220101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 939912964 + 70308225 = 30658^2 + 8385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010221189 - 2⁹ = 1010220677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010221139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505110594 + 505110595.

It is an arithmetic number, because the mean of its divisors is an integer number (505110595).

Almost surely, 2^1010221189 is an apocalyptic number.

It is an amenable number.

1010221189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010221189 is an equidigital number, since it uses as much as digits as its factorization.

1010221189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 1010221189 is about 31783.9769223425. The cubic root of 1010221189 is about 1003.3955203917.

The spelling of 1010221189 in words is "one billion, ten million, two hundred twenty-one thousand, one hundred eighty-nine".