121601333 has 8 divisors (see below), whose sum is σ = 139043520. Its totient is φ = 104176800.

The previous prime is 121601329. The next prime is 121601339. The reversal of 121601333 is 333106121.

It is a happy number.

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

It is not a de Polignac number, because 121601333 - 2² = 121601329 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121601339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17858 + ... + 23708.

It is an arithmetic number, because the mean of its divisors is an integer number (17380440).

Almost surely, 2^121601333 is an apocalyptic number.

It is an amenable number.

121601333 is a deficient number, since it is larger than the sum of its proper divisors (17442187).

121601333 is an equidigital number, since it uses as much as digits as its factorization.

121601333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 121601333 is about 11027.2994427466. The cubic root of 121601333 is about 495.4267421564.

Adding to 121601333 its reverse (333106121), we get a palindrome (454707454).

The spelling of 121601333 in words is "one hundred twenty-one million, six hundred one thousand, three hundred thirty-three".