21112233321333 has 96 divisors (see below), whose sum is σ = 37616532503040. Its totient is φ = 10386283501440.

The previous prime is 21112233321293. The next prime is 21112233321341. The reversal of 21112233321333 is 33312333221112.

It is not a de Polignac number, because 21112233321333 - 2¹⁰ = 21112233320309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21112233321333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112233321373) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 83040235 + ... + 83294087.

It is an arithmetic number, because the mean of its divisors is an integer number (391838880240).

Almost surely, 2^{21112233321333} is an apocalyptic number.

It is an amenable number.

21112233321333 is a deficient number, since it is larger than the sum of its proper divisors (16504299181707).

21112233321333 is a wasteful number, since it uses less digits than its factorization.

21112233321333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256607 (or 256600 counting only the distinct ones).

The product of its digits is 11664, while the sum is 30.

Adding to 21112233321333 its reverse (33312333221112), we get a palindrome (54424566542445).

The spelling of 21112233321333 in words is "twenty-one trillion, one hundred twelve billion, two hundred thirty-three million, three hundred twenty-one thousand, three hundred thirty-three".