2221001321333 has 16 divisors (see below), whose sum is σ = 2360507934384. Its totient is φ = 2082482196480.

The previous prime is 2221001321309. The next prime is 2221001321339. The reversal of 2221001321333 is 3331231001222.

It can be written as a sum of positive squares in 8 ways, for example, as 201171984484 + 2019829336849 = 448522^2 + 1421207^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221001321333 - 2¹⁰ = 2221001320309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221001321299 and 2221001321308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221001321339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24207041 + ... + 24298617.

It is an arithmetic number, because the mean of its divisors is an integer number (147531745899).

Almost surely, 2^{2221001321333} is an apocalyptic number.

It is an amenable number.

2221001321333 is a deficient number, since it is larger than the sum of its proper divisors (139506613051).

2221001321333 is a wasteful number, since it uses less digits than its factorization.

2221001321333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96952.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2221001321333 its reverse (3331231001222), we get a palindrome (5552232322555).

The spelling of 2221001321333 in words is "two trillion, two hundred twenty-one billion, one million, three hundred twenty-one thousand, three hundred thirty-three".