33212214 has 64 divisors (see below), whose sum is σ = 86446080. Its totient is φ = 9253440.

The previous prime is 33212189. The next prime is 33212261. The reversal of 33212214 is 41221233.

It is a super-2 number, since 2×33212214² = 2206102317563592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14427 + ... + 16569.

It is an arithmetic number, because the mean of its divisors is an integer number (1350720).

Almost surely, 2^33212214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33212214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43223040).

33212214 is an abundant number, since it is smaller than the sum of its proper divisors (53233866).

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

33212214 is a wasteful number, since it uses less digits than its factorization.

33212214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 2196 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 33212214 is about 5763.0039042152. The cubic root of 33212214 is about 321.4395236903.

Adding to 33212214 its reverse (41221233), we get a palindrome (74433447).

The spelling of 33212214 in words is "thirty-three million, two hundred twelve thousand, two hundred fourteen".