1020022221089 has 2 divisors, whose sum is σ = 1020022221090. Its totient is φ = 1020022221088.

The previous prime is 1020022220983. The next prime is 1020022221181. The reversal of 1020022221089 is 9801222200201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1019645550625 + 376670464 = 1009775^2 + 19408^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020022221089 - 2¹⁶ = 1020022155553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020022229089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510011110544 + 510011110545.

It is an arithmetic number, because the mean of its divisors is an integer number (510011110545).

Almost surely, 2^{1020022221089} is an apocalyptic number.

It is an amenable number.

1020022221089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020022221089 is an equidigital number, since it uses as much as digits as its factorization.

1020022221089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 1020022221089 in words is "one trillion, twenty billion, twenty-two million, two hundred twenty-one thousand, eighty-nine".