13220222201 has 4 divisors (see below), whose sum is σ = 13226342004. Its totient is φ = 13214102400.

The previous prime is 13220222179. The next prime is 13220222243. The reversal of 13220222201 is 10222202231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5978382400 + 7241839801 = 77320^2 + 85099^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220222201 - 2²² = 13216027897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13220222201.

It is not an unprimeable number, because it can be changed into a prime (13220222101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3056660 + ... + 3060981.

It is an arithmetic number, because the mean of its divisors is an integer number (3306585501).

Almost surely, 2^13220222201 is an apocalyptic number.

It is an amenable number.

13220222201 is a deficient number, since it is larger than the sum of its proper divisors (6119803).

13220222201 is an equidigital number, since it uses as much as digits as its factorization.

13220222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6119802.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 13220222201 its reverse (10222202231), we get a palindrome (23442424432).

The spelling of 13220222201 in words is "thirteen billion, two hundred twenty million, two hundred twenty-two thousand, two hundred one".