33003213121121 has 4 divisors (see below), whose sum is σ = 34944578598852. Its totient is φ = 31061847643392.

The previous prime is 33003213121103. The next prime is 33003213121129. The reversal of 33003213121121 is 12112131230033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30947247150625 + 2055965970496 = 5563025^2 + 1433864^2 .

It is a cyclic number.

It is not a de Polignac number, because 33003213121121 - 2²⁶ = 33003146012257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33003213121129) 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 3 ways as a sum of consecutive naturals, for example, 970682738840 + ... + 970682738873.

It is an arithmetic number, because the mean of its divisors is an integer number (8736144649713).

Almost surely, 2^{33003213121121} is an apocalyptic number.

It is an amenable number.

33003213121121 is a deficient number, since it is larger than the sum of its proper divisors (1941365477731).

33003213121121 is a wasteful number, since it uses less digits than its factorization.

33003213121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941365477730.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 33003213121121 its reverse (12112131230033), we get a palindrome (45115344351154).

The spelling of 33003213121121 in words is "thirty-three trillion, three billion, two hundred thirteen million, one hundred twenty-one thousand, one hundred twenty-one".