13220122001 has 2 divisors, whose sum is σ = 13220122002. Its totient is φ = 13220122000.

The previous prime is 13220121991. The next prime is 13220122031. The reversal of 13220122001 is 10022102231.

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., 7538580625 + 5681541376 = 86825^2 + 75376^2 .

It is an emirp because it is prime and its reverse (10022102231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13220122001 - 2¹⁴ = 13220105617 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220122031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610061000 + 6610061001.

It is an arithmetic number, because the mean of its divisors is an integer number (6610061001).

Almost surely, 2^13220122001 is an apocalyptic number.

It is an amenable number.

13220122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220122001 is an equidigital number, since it uses as much as digits as its factorization.

13220122001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13220122001 its reverse (10022102231), we get a palindrome (23242224232).

The spelling of 13220122001 in words is "thirteen billion, two hundred twenty million, one hundred twenty-two thousand, one".