22311222211321 has 8 divisors (see below), whose sum is σ = 22617590727560. Its totient is φ = 22004873569152.

The previous prime is 22311222211279. The next prime is 22311222211357. The reversal of 22311222211321 is 12311222211322.

It can be written as a sum of positive squares in 4 ways, for example, as 6630295404096 + 15680926807225 = 2574936^2 + 3959915^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22311222211321 - 2¹¹ = 22311222209273 is a prime.

It is a super-3 number, since 3×22311222211321³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22311222211721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700786 + ... + 7205323.

It is an arithmetic number, because the mean of its divisors is an integer number (2827198840945).

Almost surely, 2^{22311222211321} is an apocalyptic number.

It is an amenable number.

22311222211321 is a deficient number, since it is larger than the sum of its proper divisors (306368516239).

22311222211321 is an equidigital number, since it uses as much as digits as its factorization.

22311222211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9937035.

The product of its digits is 1152, while the sum is 25.

Adding to 22311222211321 its reverse (12311222211322), we get a palindrome (34622444422643).

Subtracting from 22311222211321 its reverse (12311222211322), we obtain a palindrome (9999999999999).

The spelling of 22311222211321 in words is "twenty-two trillion, three hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, three hundred twenty-one".