22103213321 has 4 divisors (see below), whose sum is σ = 25260815232. Its totient is φ = 18945611412.

The previous prime is 22103213317. The next prime is 22103213339. The reversal of 22103213321 is 12331230122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22103213321 - 2² = 22103213317 is a prime.

It is a super-2 number, since 2×22103213321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22103213293 and 22103213302.

It is not an unprimeable number, because it can be changed into a prime (22103213351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1578800945 + ... + 1578800958.

It is an arithmetic number, because the mean of its divisors is an integer number (6315203808).

Almost surely, 2^22103213321 is an apocalyptic number.

It is an amenable number.

22103213321 is a deficient number, since it is larger than the sum of its proper divisors (3157601911).

22103213321 is an equidigital number, since it uses as much as digits as its factorization.

22103213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157601910.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22103213321 its reverse (12331230122), we get a palindrome (34434443443).

The spelling of 22103213321 in words is "twenty-two billion, one hundred three million, two hundred thirteen thousand, three hundred twenty-one".