13212120120321 has 8 divisors (see below), whose sum is σ = 17634302450784. Its totient is φ = 8799008935040.

The previous prime is 13212120120299. The next prime is 13212120120361. The reversal of 13212120120321 is 12302102121231.

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

It is a cyclic number.

It is not a de Polignac number, because 13212120120321 - 2⁵ = 13212120120289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13212120120361) 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, 2267782896 + ... + 2267788721.

It is an arithmetic number, because the mean of its divisors is an integer number (2204287806348).

Almost surely, 2^{13212120120321} is an apocalyptic number.

It is an amenable number.

13212120120321 is a deficient number, since it is larger than the sum of its proper divisors (4422182330463).

13212120120321 is an equidigital number, since it uses as much as digits as its factorization.

13212120120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535572591.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13212120120321 its reverse (12302102121231), we get a palindrome (25514222241552).

The spelling of 13212120120321 in words is "thirteen trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty thousand, three hundred twenty-one".