10001322021 has 32 divisors (see below), whose sum is σ = 14013370368. Its totient is φ = 6336760320.

The previous prime is 10001322013. The next prime is 10001322031. The reversal of 10001322021 is 12022310001.

It is not a de Polignac number, because 10001322021 - 2³ = 10001322013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10001321988 and 10001322006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001322031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2197270 + ... + 2201816.

It is an arithmetic number, because the mean of its divisors is an integer number (437917824).

Almost surely, 2^10001322021 is an apocalyptic number.

It is an amenable number.

10001322021 is a deficient number, since it is larger than the sum of its proper divisors (4012048347).

10001322021 is a wasteful number, since it uses less digits than its factorization.

10001322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 10001322021 its reverse (12022310001), we get a palindrome (22023632022).

The spelling of 10001322021 in words is "ten billion, one million, three hundred twenty-two thousand, twenty-one".