33120020132021 has 8 divisors (see below), whose sum is σ = 33303457848024. Its totient is φ = 32936587407360.

The previous prime is 33120020132011. The next prime is 33120020132053. The reversal of 33120020132021 is 12023102002133.

It can be written as a sum of positive squares in 4 ways, for example, as 251240535121 + 32868779596900 = 501239^2 + 5733130^2 .

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 33120020132021 - 2³⁴ = 33102840262837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33120020131984 and 33120020132002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33120020132011) 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, 12476741 + ... + 14896613.

It is an arithmetic number, because the mean of its divisors is an integer number (4162932231003).

Almost surely, 2^{33120020132021} is an apocalyptic number.

It is an amenable number.

33120020132021 is a deficient number, since it is larger than the sum of its proper divisors (183437716003).

33120020132021 is a wasteful number, since it uses less digits than its factorization.

33120020132021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495671.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 33120020132021 its reverse (12023102002133), we get a palindrome (45143122134154).

The spelling of 33120020132021 in words is "thirty-three trillion, one hundred twenty billion, twenty million, one hundred thirty-two thousand, twenty-one".