13320232101221 has 8 divisors (see below), whose sum is σ = 14042468434944. Its totient is φ = 12616280231760.

The previous prime is 13320232101173. The next prime is 13320232101299. The reversal of 13320232101221 is 12210123202331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13320232101221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320232101521) 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, 4571114570 + ... + 4571117483.

It is an arithmetic number, because the mean of its divisors is an integer number (1755308554368).

Almost surely, 2^{13320232101221} is an apocalyptic number.

It is an amenable number.

13320232101221 is a deficient number, since it is larger than the sum of its proper divisors (722236333723).

13320232101221 is an equidigital number, since it uses as much as digits as its factorization.

13320232101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142232131.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13320232101221 its reverse (12210123202331), we get a palindrome (25530355303552).

The spelling of 13320232101221 in words is "thirteen trillion, three hundred twenty billion, two hundred thirty-two million, one hundred one thousand, two hundred twenty-one".