121215333 has 8 divisors (see below), whose sum is σ = 161672896. Its totient is φ = 80784000.

The previous prime is 121215317. The next prime is 121215343. The reversal of 121215333 is 333512121.

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

It is not a de Polignac number, because 121215333 - 2⁴ = 121215317 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 (121215343) 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, 10773 + ... + 18933.

It is an arithmetic number, because the mean of its divisors is an integer number (20209112).

Almost surely, 2^121215333 is an apocalyptic number.

It is an amenable number.

121215333 is a deficient number, since it is larger than the sum of its proper divisors (40457563).

121215333 is an equidigital number, since it uses as much as digits as its factorization.

121215333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13115.

The product of its digits is 540, while the sum is 21.

The square root of 121215333 is about 11009.7835128580. The cubic root of 121215333 is about 494.9019742632.

Adding to 121215333 its reverse (333512121), we get a palindrome (454727454).

The spelling of 121215333 in words is "one hundred twenty-one million, two hundred fifteen thousand, three hundred thirty-three".