33032020021 has 24 divisors (see below), whose sum is σ = 44686689152. Its totient is φ = 23759287200.

The previous prime is 33032019997. The next prime is 33032020027. The reversal of 33032020021 is 12002023033.

It is not a de Polignac number, because 33032020021 - 2⁷ = 33032019893 is a prime.

It is a super-2 number, since 2×33032020021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33032019977 and 33032020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33032020027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1488945 + ... + 1510966.

Almost surely, 2^33032020021 is an apocalyptic number.

It is an amenable number.

33032020021 is a deficient number, since it is larger than the sum of its proper divisors (11654669131).

33032020021 is a wasteful number, since it uses less digits than its factorization.

33032020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999953 (or 2999942 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 33032020021 its reverse (12002023033), we get a palindrome (45034043054).

The spelling of 33032020021 in words is "thirty-three billion, thirty-two million, twenty thousand, twenty-one".