1222535243 has 2 divisors, whose sum is σ = 1222535244. Its totient is φ = 1222535242.

The previous prime is 1222535233. The next prime is 1222535267. The reversal of 1222535243 is 3425352221.

It is a weak prime.

It is an emirp because it is prime and its reverse (3425352221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222535243 - 2⁴ = 1222535227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222535233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611267621 + 611267622.

It is an arithmetic number, because the mean of its divisors is an integer number (611267622).

Almost surely, 2^1222535243 is an apocalyptic number.

1222535243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222535243 is an equidigital number, since it uses as much as digits as its factorization.

1222535243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 29.

The square root of 1222535243 is about 34964.7714564245. The cubic root of 1222535243 is about 1069.2693771977.

Adding to 1222535243 its reverse (3425352221), we get a palindrome (4647887464).

The spelling of 1222535243 in words is "one billion, two hundred twenty-two million, five hundred thirty-five thousand, two hundred forty-three".