121330021333 has 4 divisors (see below), whose sum is σ = 124289290188. Its totient is φ = 118370752480.

The previous prime is 121330021321. The next prime is 121330021387. The reversal of 121330021333 is 333120033121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 333120033121 = 20731 ⋅16068691.

It can be written as a sum of positive squares in 2 ways, for example, as 5060615044 + 116269406289 = 71138^2 + 340983^2 .

It is a cyclic number.

It is not a de Polignac number, because 121330021333 - 2⁹ = 121330020821 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 (121330021433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1479634366 + ... + 1479634447.

It is an arithmetic number, because the mean of its divisors is an integer number (31072322547).

Almost surely, 2^121330021333 is an apocalyptic number.

It is an amenable number.

121330021333 is a deficient number, since it is larger than the sum of its proper divisors (2959268855).

121330021333 is an equidigital number, since it uses as much as digits as its factorization.

121330021333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959268854.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 121330021333 its reverse (333120033121), we get a palindrome (454450054454).

The spelling of 121330021333 in words is "one hundred twenty-one billion, three hundred thirty million, twenty-one thousand, three hundred thirty-three".