22132111321 has 2 divisors, whose sum is σ = 22132111322. Its totient is φ = 22132111320.

The previous prime is 22132111319. The next prime is 22132111349. The reversal of 22132111321 is 12311123122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21772478025 + 359633296 = 147555^2 + 18964^2 .

It is a cyclic number.

It is not a de Polignac number, because 22132111321 - 2¹ = 22132111319 is a prime.

Together with 22132111319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22132111361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066055660 + 11066055661.

It is an arithmetic number, because the mean of its divisors is an integer number (11066055661).

Almost surely, 2^22132111321 is an apocalyptic number.

It is an amenable number.

22132111321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22132111321 is an equidigital number, since it uses as much as digits as its factorization.

22132111321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

Adding to 22132111321 its reverse (12311123122), we get a palindrome (34443234443).

The spelling of 22132111321 in words is "twenty-two billion, one hundred thirty-two million, one hundred eleven thousand, three hundred twenty-one".