1000011220011 has 20 divisors (see below), whose sum is σ = 1503736945744. Its totient is φ = 662259078000.

The previous prime is 1000011219973. The next prime is 1000011220073. The reversal of 1000011220011 is 1100221100001.

It is a happy number.

It is not a de Polignac number, because 1000011220011 - 2⁹ = 1000011219499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000011219975 and 1000011220002.

It is not an unprimeable number, because it can be changed into a prime (1000011220111) 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 19 ways as a sum of consecutive naturals, for example, 40867960 + ... + 40892421.

Almost surely, 2^{1000011220011} is an apocalyptic number.

1000011220011 is a deficient number, since it is larger than the sum of its proper divisors (503725725733).

1000011220011 is an equidigital number, since it uses as much as digits as its factorization.

1000011220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81760544 (or 81760535 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1000011220011 its reverse (1100221100001), we get a palindrome (2100232320012).

The spelling of 1000011220011 in words is "one trillion, eleven million, two hundred twenty thousand, eleven".