13220212201 has 6 divisors (see below), whose sum is σ = 15378614250. Its totient is φ = 11331610416.

The previous prime is 13220212189. The next prime is 13220212211. The reversal of 13220212201 is 10221202231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8082189801 + 5138022400 = 89901^2 + 71680^2 .

It is not a de Polignac number, because 13220212201 - 2⁹ = 13220211689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220212211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134900076 + ... + 134900173.

It is an arithmetic number, because the mean of its divisors is an integer number (2563102375).

Almost surely, 2^13220212201 is an apocalyptic number.

It is an amenable number.

13220212201 is a deficient number, since it is larger than the sum of its proper divisors (2158402049).

13220212201 is an equidigital number, since it uses as much as digits as its factorization.

13220212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269800263 (or 269800256 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13220212201 its reverse (10221202231), we get a palindrome (23441414432).

The spelling of 13220212201 in words is "thirteen billion, two hundred twenty million, two hundred twelve thousand, two hundred one".