13221224401 has 8 divisors (see below), whose sum is σ = 16483604544. Its totient is φ = 10302252720.

The previous prime is 13221224299. The next prime is 13221224407. The reversal of 13221224401 is 10442212231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13221224401 - 2¹¹ = 13221222353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13221224407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85852030 + ... + 85852183.

It is an arithmetic number, because the mean of its divisors is an integer number (2060450568).

Almost surely, 2^13221224401 is an apocalyptic number.

13221224401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13221224401 is a deficient number, since it is larger than the sum of its proper divisors (3262380143).

13221224401 is a wasteful number, since it uses less digits than its factorization.

13221224401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171704231.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 13221224401 its reverse (10442212231), we get a palindrome (23663436632).

The spelling of 13221224401 in words is "thirteen billion, two hundred twenty-one million, two hundred twenty-four thousand, four hundred one".