1222231243 has 2 divisors, whose sum is σ = 1222231244. Its totient is φ = 1222231242.

The previous prime is 1222231207. The next prime is 1222231289. The reversal of 1222231243 is 3421322221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222231243 is a prime.

It is a super-2 number, since 2×1222231243² = 2987698422730650098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222231343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611115621 + 611115622.

It is an arithmetic number, because the mean of its divisors is an integer number (611115622).

Almost surely, 2^1222231243 is an apocalyptic number.

1222231243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222231243 is an equidigital number, since it uses as much as digits as its factorization.

1222231243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 1222231243 is about 34960.4239533791. The cubic root of 1222231243 is about 1069.1807403971.

Adding to 1222231243 its reverse (3421322221), we get a palindrome (4643553464).

The spelling of 1222231243 in words is "one billion, two hundred twenty-two million, two hundred thirty-one thousand, two hundred forty-three".