33200320212 has 36 divisors (see below), whose sum is σ = 86816932020. Its totient is φ = 10685160192.

The previous prime is 33200320121. The next prime is 33200320213. The reversal of 33200320212 is 21202300233.

It is a happy number.

33200320212 is a `hidden beast` number, since 3 + 320 + 0 + 320 + 21 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5269888836 + 27930431376 = 72594^2 + 167124^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×33200320212² (a number of 22 digits) 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 not an unprimeable number, because it can be changed into a prime (33200320213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15899493 + ... + 15901580.

It is an arithmetic number, because the mean of its divisors is an integer number (2411581445).

Almost surely, 2^33200320212 is an apocalyptic number.

It is an amenable number.

33200320212 is an abundant number, since it is smaller than the sum of its proper divisors (53616611808).

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

33200320212 is a wasteful number, since it uses less digits than its factorization.

33200320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31801112 (or 31801107 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 33200320212 its reverse (21202300233), we get a palindrome (54402620445).

The spelling of 33200320212 in words is "thirty-three billion, two hundred million, three hundred twenty thousand, two hundred twelve".