1223052217 has 2 divisors, whose sum is σ = 1223052218. Its totient is φ = 1223052216.

The previous prime is 1223052157. The next prime is 1223052277. The reversal of 1223052217 is 7122503221.

It is a balanced prime because it is at equal distance from previous prime (1223052157) and next prime (1223052277).

It can be written as a sum of positive squares in only one way, i.e., 1195845561 + 27206656 = 34581^2 + 5216^2 .

It is an emirp because it is prime and its reverse (7122503221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223052217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223052191 and 1223052200.

It is not a weakly prime, because it can be changed into another prime (1223052277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611526108 + 611526109.

It is an arithmetic number, because the mean of its divisors is an integer number (611526109).

Almost surely, 2^1223052217 is an apocalyptic number.

It is an amenable number.

1223052217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223052217 is an equidigital number, since it uses as much as digits as its factorization.

1223052217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1223052217 is about 34972.1634589569. The cubic root of 1223052217 is about 1069.4200767569.

Adding to 1223052217 its reverse (7122503221), we get a palindrome (8345555438).

The spelling of 1223052217 in words is "one billion, two hundred twenty-three million, fifty-two thousand, two hundred seventeen".