13122215633 has 2 divisors, whose sum is σ = 13122215634. Its totient is φ = 13122215632.

The previous prime is 13122215621. The next prime is 13122215671. The reversal of 13122215633 is 33651222131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9279083584 + 3843132049 = 96328^2 + 61993^2 .

It is a cyclic number.

It is not a de Polignac number, because 13122215633 - 2²⁰ = 13121167057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13122215596 and 13122215605.

It is not a weakly prime, because it can be changed into another prime (13122215693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561107816 + 6561107817.

It is an arithmetic number, because the mean of its divisors is an integer number (6561107817).

Almost surely, 2^13122215633 is an apocalyptic number.

It is an amenable number.

13122215633 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122215633 is an equidigital number, since it uses as much as digits as its factorization.

13122215633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

Adding to 13122215633 its reverse (33651222131), we get a palindrome (46773437764).

The spelling of 13122215633 in words is "thirteen billion, one hundred twenty-two million, two hundred fifteen thousand, six hundred thirty-three".