710223221 has 2 divisors, whose sum is σ = 710223222. Its totient is φ = 710223220.

The previous prime is 710223191. The next prime is 710223247. The reversal of 710223221 is 122322017.

710223221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708304996 + 1918225 = 26614^2 + 1385^2 .

It is an emirp because it is prime and its reverse (122322017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 710223221 - 2²⁶ = 643114357 is a prime.

It is a super-2 number, since 2×710223221² = 1008834047295229682, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 710223193 and 710223202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (710223271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355111610 + 355111611.

It is an arithmetic number, because the mean of its divisors is an integer number (355111611).

Almost surely, 2^710223221 is an apocalyptic number.

It is an amenable number.

710223221 is a deficient number, since it is larger than the sum of its proper divisors (1).

710223221 is an equidigital number, since it uses as much as digits as its factorization.

710223221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 710223221 is about 26650.0135272011. The cubic root of 710223221 is about 892.2056227453.

Adding to 710223221 its reverse (122322017), we get a palindrome (832545238).

The spelling of 710223221 in words is "seven hundred ten million, two hundred twenty-three thousand, two hundred twenty-one".