33021132 has 12 divisors (see below), whose sum is σ = 77049336. Its totient is φ = 11007040.

The previous prime is 33021127. The next prime is 33021137. The reversal of 33021132 is 23112033.

It is an interprime number because it is at equal distance from previous prime (33021127) and next prime (33021137).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33021132² = 2180790317122848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33021137) 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 3 ways as a sum of consecutive naturals, for example, 1375869 + ... + 1375892.

It is an arithmetic number, because the mean of its divisors is an integer number (6420778).

Almost surely, 2^33021132 is an apocalyptic number.

It is an amenable number.

33021132 is an abundant number, since it is smaller than the sum of its proper divisors (44028204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33021132 is a wasteful number, since it uses less digits than its factorization.

33021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751768 (or 2751766 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 33021132 is about 5746.4016566892. The cubic root of 33021132 is about 320.8218846686.

Adding to 33021132 its reverse (23112033), we get a palindrome (56133165).

Subtracting from 33021132 its reverse (23112033), we obtain a palindrome (9909099).

It can be divided in two parts, 33021 and 132, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 33021132 in words is "thirty-three million, twenty-one thousand, one hundred thirty-two".