22312223321 has 2 divisors, whose sum is σ = 22312223322. Its totient is φ = 22312223320.

The previous prime is 22312223303. The next prime is 22312223327. The reversal of 22312223321 is 12332221322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13412187721 + 8900035600 = 115811^2 + 94340^2 .

It is a cyclic number.

It is not a de Polignac number, because 22312223321 - 2²⁶ = 22245114457 is a prime.

It is a super-3 number, since 3×22312223321³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22312223327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11156111660 + 11156111661.

It is an arithmetic number, because the mean of its divisors is an integer number (11156111661).

Almost surely, 2^22312223321 is an apocalyptic number.

It is an amenable number.

22312223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22312223321 is an equidigital number, since it uses as much as digits as its factorization.

22312223321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

Adding to 22312223321 its reverse (12332221322), we get a palindrome (34644444643).

The spelling of 22312223321 in words is "twenty-two billion, three hundred twelve million, two hundred twenty-three thousand, three hundred twenty-one".