13221300405 has 16 divisors (see below), whose sum is σ = 21155518080. Its totient is φ = 7050881088.

The previous prime is 13221300403. The next prime is 13221300413. The reversal of 13221300405 is 50400312231.

It is not a de Polignac number, because 13221300405 - 2¹ = 13221300403 is a prime.

It is a super-3 number, since 3×13221300405³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221300403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373504 + ... + 407366.

It is an arithmetic number, because the mean of its divisors is an integer number (1322219880).

Almost surely, 2^13221300405 is an apocalyptic number.

13221300405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13221300405 is a deficient number, since it is larger than the sum of its proper divisors (7934217675).

13221300405 is a wasteful number, since it uses less digits than its factorization.

13221300405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59900.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 13221300405 its reverse (50400312231), we get a palindrome (63621612636).

The spelling of 13221300405 in words is "thirteen billion, two hundred twenty-one million, three hundred thousand, four hundred five".