10021002221189 has 2 divisors, whose sum is σ = 10021002221190. Its totient is φ = 10021002221188.

The previous prime is 10021002221179. The next prime is 10021002221201. The reversal of 10021002221189 is 98112220012001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9107750589025 + 913251632164 = 3017905^2 + 955642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021002221189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021002221149) 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, 5010501110594 + 5010501110595.

It is an arithmetic number, because the mean of its divisors is an integer number (5010501110595).

Almost surely, 2^{10021002221189} is an apocalyptic number.

It is an amenable number.

10021002221189 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021002221189 is an equidigital number, since it uses as much as digits as its factorization.

10021002221189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 10021002221189 in words is "ten trillion, twenty-one billion, two million, two hundred twenty-one thousand, one hundred eighty-nine".