22120222321 has 2 divisors, whose sum is σ = 22120222322. Its totient is φ = 22120222320.

The previous prime is 22120222211. The next prime is 22120222337. The reversal of 22120222321 is 12322202122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21885060096 + 235162225 = 147936^2 + 15335^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120222321 - 2¹⁷ = 22120091249 is a prime.

It is not a weakly prime, because it can be changed into another prime (22120222721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060111160 + 11060111161.

It is an arithmetic number, because the mean of its divisors is an integer number (11060111161).

Almost surely, 2^22120222321 is an apocalyptic number.

It is an amenable number.

22120222321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120222321 is an equidigital number, since it uses as much as digits as its factorization.

22120222321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22120222321 its reverse (12322202122), we get a palindrome (34442424443).

The spelling of 22120222321 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, three hundred twenty-one".