33333020021 has 8 divisors (see below), whose sum is σ = 39124471680. Its totient is φ = 27798966288.

The previous prime is 33333020003. The next prime is 33333020051. The reversal of 33333020021 is 12002033333.

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 33333020021 - 2³⁴ = 16153150837 is a prime.

It is a super-2 number, since 2×33333020021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33333019975 and 33333020002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33333020051) 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, 64349201 + ... + 64349718.

It is an arithmetic number, because the mean of its divisors is an integer number (4890558960).

Almost surely, 2^33333020021 is an apocalyptic number.

It is an amenable number.

33333020021 is a deficient number, since it is larger than the sum of its proper divisors (5791451659).

33333020021 is a wasteful number, since it uses less digits than its factorization.

33333020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128698963.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 33333020021 its reverse (12002033333), we get a palindrome (45335053354).

The spelling of 33333020021 in words is "thirty-three billion, three hundred thirty-three million, twenty thousand, twenty-one".