1000001122011 has 16 divisors (see below), whose sum is σ = 1501777436320. Its totient is φ = 657534983040.

The previous prime is 1000001121991. The next prime is 1000001122039. The reversal of 1000001122011 is 1102211000001.

It is a happy number.

It is not a de Polignac number, because 1000001122011 - 2⁹ = 1000001121499 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 = 1000001121984 and 1000001122002.

It is not an unprimeable number, because it can be changed into a prime (1000001124011) 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 15 ways as a sum of consecutive naturals, for example, 253676650 + ... + 253680591.

It is an arithmetic number, because the mean of its divisors is an integer number (93861089770).

Almost surely, 2^{1000001122011} is an apocalyptic number.

1000001122011 is a deficient number, since it is larger than the sum of its proper divisors (501776314309).

1000001122011 is an equidigital number, since it uses as much as digits as its factorization.

1000001122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507357323 (or 507357317 counting only the distinct ones).

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

Adding to 1000001122011 its reverse (1102211000001), we get a palindrome (2102212122012).

The spelling of 1000001122011 in words is "one trillion, one million, one hundred twenty-two thousand, eleven".