13412242221 has 48 divisors (see below), whose sum is σ = 21435926400. Its totient is φ = 7456216320.

The previous prime is 13412242213. The next prime is 13412242229. The reversal of 13412242221 is 12224221431.

It is an interprime number because it is at equal distance from previous prime (13412242213) and next prime (13412242229).

It is not a de Polignac number, because 13412242221 - 2³ = 13412242213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13412242191 and 13412242200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13412242229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1403941 + ... + 1413461.

It is an arithmetic number, because the mean of its divisors is an integer number (446581800).

Almost surely, 2^13412242221 is an apocalyptic number.

It is an amenable number.

13412242221 is a deficient number, since it is larger than the sum of its proper divisors (8023684179).

13412242221 is an frugal number, since it uses more digits than its factorization.

13412242221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9619 (or 9568 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

Adding to 13412242221 its reverse (12224221431), we get a palindrome (25636463652).

The spelling of 13412242221 in words is "thirteen billion, four hundred twelve million, two hundred forty-two thousand, two hundred twenty-one".