10011322021 has 4 divisors (see below), whose sum is σ = 10011700972. Its totient is φ = 10010943072.

The previous prime is 10011321973. The next prime is 10011322043. The reversal of 10011322021 is 12022311001.

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 2642988100 + 7368333921 = 51410^2 + 85839^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011322021 - 2²⁵ = 9977767589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011321992 and 10011322010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011322721) 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, 146616 + ... + 203761.

It is an arithmetic number, because the mean of its divisors is an integer number (2502925243).

Almost surely, 2^10011322021 is an apocalyptic number.

It is an amenable number.

10011322021 is a deficient number, since it is larger than the sum of its proper divisors (378951).

10011322021 is an equidigital number, since it uses as much as digits as its factorization.

10011322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378950.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10011322021 its reverse (12022311001), we get a palindrome (22033633022).

The spelling of 10011322021 in words is "ten billion, eleven million, three hundred twenty-two thousand, twenty-one".