1000001122001 has 8 divisors (see below), whose sum is σ = 1142886224640. Its totient is φ = 857122969248.

The previous prime is 1000001121991. The next prime is 1000001122039. The reversal of 1000001122001 is 1002211000001.

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

It is not a de Polignac number, because 1000001122001 - 2¹⁰ = 1000001120977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000001122001.

It is not an unprimeable number, because it can be changed into a prime (1000001122201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425401 + ... + 2007926.

It is an arithmetic number, because the mean of its divisors is an integer number (142860778080).

Almost surely, 2^{1000001122001} is an apocalyptic number.

It is an amenable number.

1000001122001 is a deficient number, since it is larger than the sum of its proper divisors (142885102639).

1000001122001 is an equidigital number, since it uses as much as digits as its factorization.

1000001122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474943.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1000001122001 its reverse (1002211000001), we get a palindrome (2002212122002).

The spelling of 1000001122001 in words is "one trillion, one million, one hundred twenty-two thousand, one".