1001222000989 has 12 divisors (see below), whose sum is σ = 1169685486684. Its totient is φ = 854507056704.

The previous prime is 1001222000971. The next prime is 1001222001001. The reversal of 1001222000989 is 9890002221001.

It can be written as a sum of positive squares in 2 ways, for example, as 286715269764 + 714506731225 = 535458^2 + 845285^2 .

It is not a de Polignac number, because 1001222000989 - 2³⁹ = 451466187101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001222000089) 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 in 11 ways as a sum of consecutive naturals, for example, 43836442 + ... + 43859275.

It is an arithmetic number, because the mean of its divisors is an integer number (97473790557).

Almost surely, 2^{1001222000989} is an apocalyptic number.

It is an amenable number.

1001222000989 is a deficient number, since it is larger than the sum of its proper divisors (168463485695).

1001222000989 is an equidigital number, since it uses as much as digits as its factorization.

1001222000989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87695964 (or 87695957 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 1001222000989 in words is "one trillion, one billion, two hundred twenty-two million, nine hundred eighty-nine", and thus it is an aban number.