1222434259 has 2 divisors, whose sum is σ = 1222434260. Its totient is φ = 1222434258.

The previous prime is 1222434221. The next prime is 1222434263. The reversal of 1222434259 is 9524342221.

It is a strong prime.

It is an emirp because it is prime and its reverse (9524342221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222434259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222434299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611217129 + 611217130.

It is an arithmetic number, because the mean of its divisors is an integer number (611217130).

Almost surely, 2^1222434259 is an apocalyptic number.

1222434259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222434259 is an equidigital number, since it uses as much as digits as its factorization.

1222434259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 1222434259 is about 34963.3273445191. The cubic root of 1222434259 is about 1069.2399350821.

The spelling of 1222434259 in words is "one billion, two hundred twenty-two million, four hundred thirty-four thousand, two hundred fifty-nine".