33021071 has 2 divisors, whose sum is σ = 33021072. Its totient is φ = 33021070.

The previous prime is 33021049. The next prime is 33021083. The reversal of 33021071 is 17012033.

It is a strong prime.

It is an emirp because it is prime and its reverse (17012033) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33021071 is a prime.

It is a super-2 number, since 2×33021071² = 2180782259974082, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33021271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16510535 + 16510536.

It is an arithmetic number, because the mean of its divisors is an integer number (16510536).

Almost surely, 2^33021071 is an apocalyptic number.

33021071 is a deficient number, since it is larger than the sum of its proper divisors (1).

33021071 is an equidigital number, since it uses as much as digits as its factorization.

33021071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 33021071 is about 5746.3963490174. The cubic root of 33021071 is about 320.8216871168.

The spelling of 33021071 in words is "thirty-three million, twenty-one thousand, seventy-one".