1323222101221 has 8 divisors (see below), whose sum is σ = 1323828463680. Its totient is φ = 1322615865792.

The previous prime is 1323222101209. The next prime is 1323222101237. The reversal of 1323222101221 is 1221012223231.

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 1323222101221 - 2²¹ = 1323220004069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323222101192 and 1323222101201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323222101321) 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, 25210221 + ... + 25262653.

It is an arithmetic number, because the mean of its divisors is an integer number (165478557960).

Almost surely, 2^{1323222101221} is an apocalyptic number.

It is an amenable number.

1323222101221 is a deficient number, since it is larger than the sum of its proper divisors (606362459).

1323222101221 is an equidigital number, since it uses as much as digits as its factorization.

1323222101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63515.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1323222101221 its reverse (1221012223231), we get a palindrome (2544234324452).

The spelling of 1323222101221 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty-one".