1222454843 has 2 divisors, whose sum is σ = 1222454844. Its totient is φ = 1222454842.

The previous prime is 1222454801. The next prime is 1222454867. The reversal of 1222454843 is 3484542221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222454843 - 2¹⁰ = 1222453819 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222454873) 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, 611227421 + 611227422.

It is an arithmetic number, because the mean of its divisors is an integer number (611227422).

Almost surely, 2^1222454843 is an apocalyptic number.

1222454843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222454843 is an equidigital number, since it uses as much as digits as its factorization.

1222454843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 35.

The square root of 1222454843 is about 34963.6217088562. The cubic root of 1222454843 is about 1069.2459365258.

The spelling of 1222454843 in words is "one billion, two hundred twenty-two million, four hundred fifty-four thousand, eight hundred forty-three".