322011020021 has 4 divisors (see below), whose sum is σ = 325199248044. Its totient is φ = 318822792000.

The previous prime is 322011019949. The next prime is 322011020077. The reversal of 322011020021 is 120020110223.

It is a happy number.

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 227801925796 + 94209094225 = 477286^2 + 306935^2 .

It is a cyclic number.

It is not a de Polignac number, because 322011020021 - 2¹⁰ = 322011018997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 322011019978 and 322011020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322011070021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1594113860 + ... + 1594114061.

It is an arithmetic number, because the mean of its divisors is an integer number (81299812011).

Almost surely, 2^322011020021 is an apocalyptic number.

It is an amenable number.

322011020021 is a deficient number, since it is larger than the sum of its proper divisors (3188228023).

322011020021 is a wasteful number, since it uses less digits than its factorization.

322011020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188228022.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 322011020021 its reverse (120020110223), we get a palindrome (442031130244).

The spelling of 322011020021 in words is "three hundred twenty-two billion, eleven million, twenty thousand, twenty-one".