33020012 has 12 divisors (see below), whose sum is σ = 58647960. Its totient is φ = 16263456.

The previous prime is 33019997. The next prime is 33020089. The reversal of 33020012 is 21002033.

It is a junction number, because it is equal to n+sod(n) for n = 33019975 and 33020002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61337 + ... + 61872.

It is an arithmetic number, because the mean of its divisors is an integer number (4887330).

Almost surely, 2^33020012 is an apocalyptic number.

It is an amenable number.

33020012 is a deficient number, since it is larger than the sum of its proper divisors (25627948).

33020012 is a wasteful number, since it uses less digits than its factorization.

33020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123280 (or 123278 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 33020012 is about 5746.3042035729. The cubic root of 33020012 is about 320.8182574502.

Subtracting from 33020012 its sum of digits (11), we obtain a triangular number (33020001 = T₈₁₂₆).

Adding to 33020012 its reverse (21002033), we get a palindrome (54022045).

The spelling of 33020012 in words is "thirty-three million, twenty thousand, twelve".