2021320012223 has 16 divisors (see below), whose sum is σ = 2104822074432. Its totient is φ = 1939454496000.

The previous prime is 2021320012211. The next prime is 2021320012273. The reversal of 2021320012223 is 3222100231202.

It is a happy number.

It is not a de Polignac number, because 2021320012223 - 2¹⁶ = 2021319946687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021320012195 and 2021320012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021320012273) 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 15 ways as a sum of consecutive naturals, for example, 22496678 + ... + 22586348.

It is an arithmetic number, because the mean of its divisors is an integer number (131551379652).

Almost surely, 2^{2021320012223} is an apocalyptic number.

2021320012223 is a deficient number, since it is larger than the sum of its proper divisors (83502062209).

2021320012223 is an equidigital number, since it uses as much as digits as its factorization.

2021320012223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98786.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2021320012223 its reverse (3222100231202), we get a palindrome (5243420243425).

The spelling of 2021320012223 in words is "two trillion, twenty-one billion, three hundred twenty million, twelve thousand, two hundred twenty-three".