13222234434257 has 2 divisors, whose sum is σ = 13222234434258. Its totient is φ = 13222234434256.

The previous prime is 13222234434217. The next prime is 13222234434287. The reversal of 13222234434257 is 75243443222231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9909091832641 + 3313142601616 = 3147871^2 + 1820204^2 .

It is an emirp because it is prime and its reverse (75243443222231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13222234434257 is a prime.

It is not a weakly prime, because it can be changed into another prime (13222234434217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611117217128 + 6611117217129.

It is an arithmetic number, because the mean of its divisors is an integer number (6611117217129).

Almost surely, 2^{13222234434257} is an apocalyptic number.

It is an amenable number.

13222234434257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13222234434257 is an equidigital number, since it uses as much as digits as its factorization.

13222234434257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 44.

Adding to 13222234434257 its reverse (75243443222231), we get a palindrome (88465677656488).

The spelling of 13222234434257 in words is "thirteen trillion, two hundred twenty-two billion, two hundred thirty-four million, four hundred thirty-four thousand, two hundred fifty-seven".