13201202221 has 4 divisors (see below), whose sum is σ = 13482078912. Its totient is φ = 12920325532.

The previous prime is 13201202197. The next prime is 13201202227. The reversal of 13201202221 is 12220210231.

It is a happy number.

13201202221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12220210231 = 47 ⋅260004473.

It is a cyclic number.

It is not a de Polignac number, because 13201202221 - 2⁷ = 13201202093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13201202195 and 13201202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140438275 + ... + 140438368.

It is an arithmetic number, because the mean of its divisors is an integer number (3370519728).

Almost surely, 2^13201202221 is an apocalyptic number.

It is an amenable number.

13201202221 is a deficient number, since it is larger than the sum of its proper divisors (280876691).

13201202221 is an equidigital number, since it uses as much as digits as its factorization.

13201202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280876690.

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

Adding to 13201202221 its reverse (12220210231), we get a palindrome (25421412452).

The spelling of 13201202221 in words is "thirteen billion, two hundred one million, two hundred two thousand, two hundred twenty-one".