1213235227 has 2 divisors, whose sum is σ = 1213235228. Its totient is φ = 1213235226.

The previous prime is 1213235207. The next prime is 1213235281. The reversal of 1213235227 is 7225323121.

It is a weak prime.

It is an emirp because it is prime and its reverse (7225323121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213235227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213235195 and 1213235204.

It is not a weakly prime, because it can be changed into another prime (1213235207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606617613 + 606617614.

It is an arithmetic number, because the mean of its divisors is an integer number (606617614).

Almost surely, 2^1213235227 is an apocalyptic number.

1213235227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213235227 is an equidigital number, since it uses as much as digits as its factorization.

1213235227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 1213235227 is about 34831.5263375006. The cubic root of 1213235227 is about 1066.5511065022.

Adding to 1213235227 its reverse (7225323121), we get a palindrome (8438558348).

The spelling of 1213235227 in words is "one billion, two hundred thirteen million, two hundred thirty-five thousand, two hundred twenty-seven".