1222394923 has 2 divisors, whose sum is σ = 1222394924. Its totient is φ = 1222394922.

The previous prime is 1222394917. The next prime is 1222394989. The reversal of 1222394923 is 3294932221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222394923 - 2¹³ = 1222386731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222394423) 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, 611197461 + 611197462.

It is an arithmetic number, because the mean of its divisors is an integer number (611197462).

Almost surely, 2^1222394923 is an apocalyptic number.

1222394923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222394923 is an equidigital number, since it uses as much as digits as its factorization.

1222394923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 1222394923 is about 34962.7648077208. The cubic root of 1222394923 is about 1069.2284661427.

The spelling of 1222394923 in words is "one billion, two hundred twenty-two million, three hundred ninety-four thousand, nine hundred twenty-three".