33061021 has 8 divisors (see below), whose sum is σ = 38082560. Its totient is φ = 28114128.

The previous prime is 33061013. The next prime is 33061027. The reversal of 33061021 is 12016033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33061021 - 2³ = 33061013 is a prime.

It is a super-2 number, since 2×33061021² = 2186062219124882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33060986 and 33061004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33061027) 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, 17706 + ... + 19483.

It is an arithmetic number, because the mean of its divisors is an integer number (4760320).

Almost surely, 2^33061021 is an apocalyptic number.

It is an amenable number.

33061021 is a deficient number, since it is larger than the sum of its proper divisors (5021539).

33061021 is a wasteful number, since it uses less digits than its factorization.

33061021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37323.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 33061021 is about 5749.8713898660. The cubic root of 33061021 is about 320.9510152573.

Adding to 33061021 its reverse (12016033), we get a palindrome (45077054).

The spelling of 33061021 in words is "thirty-three million, sixty-one thousand, twenty-one".