10021044001 has 4 divisors (see below), whose sum is σ = 10021252500. Its totient is φ = 10020835504.

The previous prime is 10021043993. The next prime is 10021044013. The reversal of 10021044001 is 10044012001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10044012001 = 47 ⋅213702383.

It can be written as a sum of positive squares in 2 ways, for example, as 807923776 + 9213120225 = 28424^2 + 95985^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021044001 - 2³ = 10021043993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021044031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8475 + ... + 141823.

It is an arithmetic number, because the mean of its divisors is an integer number (2505313125).

Almost surely, 2^10021044001 is an apocalyptic number.

It is an amenable number.

10021044001 is a deficient number, since it is larger than the sum of its proper divisors (208499).

10021044001 is an equidigital number, since it uses as much as digits as its factorization.

10021044001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208498.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10021044001 its reverse (10044012001), we get a palindrome (20065056002).

The spelling of 10021044001 in words is "ten billion, twenty-one million, forty-four thousand, one".