33212812 has 6 divisors (see below), whose sum is σ = 58122428. Its totient is φ = 16606404.

The previous prime is 33212807. The next prime is 33212827. The reversal of 33212812 is 21821233.

It is a super-2 number, since 2×33212812² = 2206181761894688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4151598 + ... + 4151605.

Almost surely, 2^33212812 is an apocalyptic number.

It is an amenable number.

33212812 is a deficient number, since it is larger than the sum of its proper divisors (24909616).

33212812 is a wasteful number, since it uses less digits than its factorization.

33212812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8303207 (or 8303205 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 33212812 is about 5763.0557866465. The cubic root of 33212812 is about 321.4414528970.

The spelling of 33212812 in words is "thirty-three million, two hundred twelve thousand, eight hundred twelve".