13221433412231 has 4 divisors (see below), whose sum is σ = 14423381904264. Its totient is φ = 12019484920200.

The previous prime is 13221433412207. The next prime is 13221433412251.

13221433412231 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13221433412231 - 2⁴² = 8823386901127 is a prime.

It is a super-2 number, since 2×13221433412231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221433412251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600974246000 + ... + 600974246021.

It is an arithmetic number, because the mean of its divisors is an integer number (3605845476066).

Almost surely, 2^{13221433412231} is an apocalyptic number.

13221433412231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13221433412231 is a deficient number, since it is larger than the sum of its proper divisors (1201948492033).

13221433412231 is a wasteful number, since it uses less digits than its factorization.

13221433412231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201948492032.

The product of its digits is 20736, while the sum is 32.

It can be divided in two parts, 1322143 and 3412231, that added together give a palindrome (4734374).

The spelling of 13221433412231 in words is "thirteen trillion, two hundred twenty-one billion, four hundred thirty-three million, four hundred twelve thousand, two hundred thirty-one".