1222130213 has 2 divisors, whose sum is σ = 1222130214. Its totient is φ = 1222130212.

The previous prime is 1222130201. The next prime is 1222130243. The reversal of 1222130213 is 3120312221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020291364 + 201838849 = 31942^2 + 14207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222130213 - 2⁶ = 1222130149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222130191 and 1222130200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222130243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611065106 + 611065107.

It is an arithmetic number, because the mean of its divisors is an integer number (611065107).

Almost surely, 2^1222130213 is an apocalyptic number.

It is an amenable number.

1222130213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222130213 is an equidigital number, since it uses as much as digits as its factorization.

1222130213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1222130213 is about 34958.9790039698. The cubic root of 1222130213 is about 1069.1512799854.

Adding to 1222130213 its reverse (3120312221), we get a palindrome (4342442434).

The spelling of 1222130213 in words is "one billion, two hundred twenty-two million, one hundred thirty thousand, two hundred thirteen".