13221322134232 has 8 divisors (see below), whose sum is σ = 24789979001700. Its totient is φ = 6610661067112.

The previous prime is 13221322134203. The next prime is 13221322134233. The reversal of 13221322134232 is 23243122312231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×13221322134232³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13221322134194 and 13221322134203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221322134233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826332633382 + ... + 826332633397.

Almost surely, 2^{13221322134232} is an apocalyptic number.

It is an amenable number.

13221322134232 is a deficient number, since it is larger than the sum of its proper divisors (11568656867468).

13221322134232 is a wasteful number, since it uses less digits than its factorization.

13221322134232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652665266785 (or 1652665266781 counting only the distinct ones).

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

Adding to 13221322134232 its reverse (23243122312231), we get a palindrome (36464444446463).

The spelling of 13221322134232 in words is "thirteen trillion, two hundred twenty-one billion, three hundred twenty-two million, one hundred thirty-four thousand, two hundred thirty-two".