1222768423 has 2 divisors, whose sum is σ = 1222768424. Its totient is φ = 1222768422.

The previous prime is 1222768387. The next prime is 1222768447. The reversal of 1222768423 is 3248672221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222768423 is a prime.

It is a super-3 number, since 3×1222768423³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222768453) 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, 611384211 + 611384212.

It is an arithmetic number, because the mean of its divisors is an integer number (611384212).

Almost surely, 2^1222768423 is an apocalyptic number.

1222768423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222768423 is an equidigital number, since it uses as much as digits as its factorization.

1222768423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 37.

The square root of 1222768423 is about 34968.1057965684. The cubic root of 1222768423 is about 1069.3373551652.

The spelling of 1222768423 in words is "one billion, two hundred twenty-two million, seven hundred sixty-eight thousand, four hundred twenty-three".