223022313221 has 2 divisors, whose sum is σ = 223022313222. Its totient is φ = 223022313220.

The previous prime is 223022313209. The next prime is 223022313223. The reversal of 223022313221 is 122313220322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173567224996 + 49455088225 = 416614^2 + 222385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223022313221 is a prime.

Together with 223022313223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223022313223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111511156610 + 111511156611.

It is an arithmetic number, because the mean of its divisors is an integer number (111511156611).

Almost surely, 2^223022313221 is an apocalyptic number.

It is an amenable number.

223022313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

223022313221 is an equidigital number, since it uses as much as digits as its factorization.

223022313221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 223022313221 its reverse (122313220322), we get a palindrome (345335533543).

The spelling of 223022313221 in words is "two hundred twenty-three billion, twenty-two million, three hundred thirteen thousand, two hundred twenty-one".