1222331293 has 2 divisors, whose sum is σ = 1222331294. Its totient is φ = 1222331292.

The previous prime is 1222331291. The next prime is 1222331309. The reversal of 1222331293 is 3921332221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101045124 + 121286169 = 33182^2 + 11013^2 .

It is an emirp because it is prime and its reverse (3921332221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222331293 - 2¹ = 1222331291 is a prime.

Together with 1222331291, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222331291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611165646 + 611165647.

It is an arithmetic number, because the mean of its divisors is an integer number (611165647).

Almost surely, 2^1222331293 is an apocalyptic number.

It is an amenable number.

1222331293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222331293 is an equidigital number, since it uses as much as digits as its factorization.

1222331293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 1222331293 is about 34961.8548277977. The cubic root of 1222331293 is about 1069.2099134402.

The spelling of 1222331293 in words is "one billion, two hundred twenty-two million, three hundred thirty-one thousand, two hundred ninety-three".