13221400134433 has 16 divisors (see below), whose sum is σ = 13822999382016. Its totient is φ = 12633419831760.

The previous prime is 13221400134413. The next prime is 13221400134493. The reversal of 13221400134433 is 33443100412231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221400134433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221400134395 and 13221400134404.

It is not an unprimeable number, because it can be changed into a prime (13221400134413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2967468 + ... + 5937058.

It is an arithmetic number, because the mean of its divisors is an integer number (863937461376).

Almost surely, 2^{13221400134433} is an apocalyptic number.

It is an amenable number.

13221400134433 is a deficient number, since it is larger than the sum of its proper divisors (601599247583).

13221400134433 is a wasteful number, since it uses less digits than its factorization.

13221400134433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971884.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 13221400134433 its reverse (33443100412231), we get a palindrome (46664500546664).

The spelling of 13221400134433 in words is "thirteen trillion, two hundred twenty-one billion, four hundred million, one hundred thirty-four thousand, four hundred thirty-three".