13342441221 has 6 divisors (see below), whose sum is σ = 19272415110. Its totient is φ = 8894960808.

The previous prime is 13342441207. The next prime is 13342441223. The reversal of 13342441221 is 12214424331.

13342441221 is a `hidden beast` number, since 13 + 3 + 424 + 4 + 1 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12429797121 + 912644100 = 111489^2 + 30210^2 .

It is not a de Polignac number, because 13342441221 - 2⁷ = 13342441093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13342441223) 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, 741246726 + ... + 741246743.

It is an arithmetic number, because the mean of its divisors is an integer number (3212069185).

Almost surely, 2^13342441221 is an apocalyptic number.

It is an amenable number.

13342441221 is a deficient number, since it is larger than the sum of its proper divisors (5929973889).

13342441221 is a wasteful number, since it uses less digits than its factorization.

13342441221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482493475 (or 1482493472 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 13342441221 its reverse (12214424331), we get a palindrome (25556865552).

The spelling of 13342441221 in words is "thirteen billion, three hundred forty-two million, four hundred forty-one thousand, two hundred twenty-one".