10001122001 has 4 divisors (see below), whose sum is σ = 10770439092. Its totient is φ = 9231804912.

The previous prime is 10001121967. The next prime is 10001122007. The reversal of 10001122001 is 10022110001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6272798401 + 3728323600 = 79201^2 + 61060^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001122001 - 2³⁰ = 8927380177 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 10001122001.

It is not an unprimeable number, because it can be changed into a prime (10001122007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384658526 + ... + 384658551.

It is an arithmetic number, because the mean of its divisors is an integer number (2692609773).

Almost surely, 2^10001122001 is an apocalyptic number.

It is an amenable number.

10001122001 is a deficient number, since it is larger than the sum of its proper divisors (769317091).

10001122001 is an equidigital number, since it uses as much as digits as its factorization.

10001122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769317090.

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

Adding to 10001122001 its reverse (10022110001), we get a palindrome (20023232002).

The spelling of 10001122001 in words is "ten billion, one million, one hundred twenty-two thousand, one".