1221304117333 has 8 divisors (see below), whose sum is σ = 1226772695808. Its totient is φ = 1215841788144.

The previous prime is 1221304117309. The next prime is 1221304117367. The reversal of 1221304117333 is 3337114031221.

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 1221304117333 - 2⁵ = 1221304117301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1221304117295 and 1221304117304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221304117133) 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, 1170366 + ... + 1952527.

It is an arithmetic number, because the mean of its divisors is an integer number (153346586976).

Almost surely, 2^{1221304117333} is an apocalyptic number.

It is an amenable number.

1221304117333 is a deficient number, since it is larger than the sum of its proper divisors (5468578475).

1221304117333 is a wasteful number, since it uses less digits than its factorization.

1221304117333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124643.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 1221304117333 its reverse (3337114031221), we get a palindrome (4558418148554).

The spelling of 1221304117333 in words is "one trillion, two hundred twenty-one billion, three hundred four million, one hundred seventeen thousand, three hundred thirty-three".