1222330313 has 2 divisors, whose sum is σ = 1222330314. Its totient is φ = 1222330312.

The previous prime is 1222330273. The next prime is 1222330321. The reversal of 1222330313 is 3130332221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805027129 + 417303184 = 28373^2 + 20428^2 .

It is an emirp because it is prime and its reverse (3130332221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222330313 - 2¹⁰ = 1222329289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222330393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611165156 + 611165157.

It is an arithmetic number, because the mean of its divisors is an integer number (611165157).

Almost surely, 2^1222330313 is an apocalyptic number.

It is an amenable number.

1222330313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222330313 is an equidigital number, since it uses as much as digits as its factorization.

1222330313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1222330313 is about 34961.8408125202. The cubic root of 1222330313 is about 1069.2096276950.

Adding to 1222330313 its reverse (3130332221), we get a palindrome (4352662534).

The spelling of 1222330313 in words is "one billion, two hundred twenty-two million, three hundred thirty thousand, three hundred thirteen".