1021202211089 has 2 divisors, whose sum is σ = 1021202211090. Its totient is φ = 1021202211088.

The previous prime is 1021202211011. The next prime is 1021202211101. The reversal of 1021202211089 is 9801122021201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 972787690000 + 48414521089 = 986300^2 + 220033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021202211089 - 2¹² = 1021202206993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021202214089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510601105544 + 510601105545.

It is an arithmetic number, because the mean of its divisors is an integer number (510601105545).

Almost surely, 2^{1021202211089} is an apocalyptic number.

It is an amenable number.

1021202211089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021202211089 is an equidigital number, since it uses as much as digits as its factorization.

1021202211089 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 1021202211089 in words is "one trillion, twenty-one billion, two hundred two million, two hundred eleven thousand, eighty-nine".