21322033213 has 12 divisors (see below), whose sum is σ = 23833147008. Its totient is φ = 19046972880.

The previous prime is 21322033211. The next prime is 21322033237. The reversal of 21322033213 is 31233022312.

It is not a de Polignac number, because 21322033213 - 2¹ = 21322033211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322033211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2029695 + ... + 2040172.

It is an arithmetic number, because the mean of its divisors is an integer number (1986095584).

Almost surely, 2^21322033213 is an apocalyptic number.

It is an amenable number.

21322033213 is a deficient number, since it is larger than the sum of its proper divisors (2511113795).

21322033213 is a wasteful number, since it uses less digits than its factorization.

21322033213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069924 (or 4069911 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21322033213 its reverse (31233022312), we get a palindrome (52555055525).

The spelling of 21322033213 in words is "twenty-one billion, three hundred twenty-two million, thirty-three thousand, two hundred thirteen".