1222310213 has 2 divisors, whose sum is σ = 1222310214. Its totient is φ = 1222310212.

The previous prime is 1222310209. The next prime is 1222310231. The reversal of 1222310213 is 3120132221.

Together with next prime (1222310231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 849897409 + 372412804 = 29153^2 + 19298^2 .

It is an emirp because it is prime and its reverse (3120132221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222310213 - 2² = 1222310209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222310191 and 1222310200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222310203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611155106 + 611155107.

It is an arithmetic number, because the mean of its divisors is an integer number (611155107).

Almost surely, 2^1222310213 is an apocalyptic number.

It is an amenable number.

1222310213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222310213 is an equidigital number, since it uses as much as digits as its factorization.

1222310213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1222310213 is about 34961.5533550785. The cubic root of 1222310213 is about 1069.2037669684.

Adding to 1222310213 its reverse (3120132221), we get a palindrome (4342442434).

The spelling of 1222310213 in words is "one billion, two hundred twenty-two million, three hundred ten thousand, two hundred thirteen".