1000011220165 has 8 divisors (see below), whose sum is σ = 1229282085528. Its totient is φ = 780496561920.

The previous prime is 1000011220163. The next prime is 1000011220211. The reversal of 1000011220165 is 5610221100001.

It can be written as a sum of positive squares in 4 ways, for example, as 9904628484 + 990106591681 = 99522^2 + 995041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1000011220165 - 2¹ = 1000011220163 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 (1000011220163) 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 in 7 ways as a sum of consecutive naturals, for example, 2439051552 + ... + 2439051961.

It is an arithmetic number, because the mean of its divisors is an integer number (153660260691).

Almost surely, 2^{1000011220165} is an apocalyptic number.

It is an amenable number.

1000011220165 is a deficient number, since it is larger than the sum of its proper divisors (229270865363).

1000011220165 is an equidigital number, since it uses as much as digits as its factorization.

1000011220165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878103559.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 1000011220165 its reverse (5610221100001), we get a palindrome (6610232320166).

The spelling of 1000011220165 in words is "one trillion, eleven million, two hundred twenty thousand, one hundred sixty-five".