33100033121021 has 32 divisors (see below), whose sum is σ = 35867049039360. Its totient is φ = 30452227432704.

The previous prime is 33100033120879. The next prime is 33100033121039. The reversal of 33100033121021 is 12012133000133.

It is a cyclic number.

It is not a de Polignac number, because 33100033121021 - 2¹⁸ = 33100032858877 is a prime.

It is a super-2 number, since 2×33100033121021² (a number of 28 digits) contains 22 as substring.

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 = 33100033120984 and 33100033121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33100033121521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218113856 + ... + 218265558.

It is an arithmetic number, because the mean of its divisors is an integer number (1120845282480).

Almost surely, 2^{33100033121021} is an apocalyptic number.

It is an amenable number.

33100033121021 is a deficient number, since it is larger than the sum of its proper divisors (2767015918339).

33100033121021 is a wasteful number, since it uses less digits than its factorization.

33100033121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153005.

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

Adding to 33100033121021 its reverse (12012133000133), we get a palindrome (45112166121154).

The spelling of 33100033121021 in words is "thirty-three trillion, one hundred billion, thirty-three million, one hundred twenty-one thousand, twenty-one".