33133225212 has 36 divisors (see below), whose sum is σ = 83760427296. Its totient is φ = 11043485760.

The previous prime is 33133225193. The next prime is 33133225219. The reversal of 33133225212 is 21252233133.

It is a happy number.

33133225212 is a `hidden beast` number, since 3 + 3 + 133 + 2 + 2 + 521 + 2 = 666.

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

It is a super-2 number, since 2×33133225212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33133225219) 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, 502888 + ... + 564944.

It is an arithmetic number, because the mean of its divisors is an integer number (2326678536).

Almost surely, 2^33133225212 is an apocalyptic number.

It is an amenable number.

33133225212 is an abundant number, since it is smaller than the sum of its proper divisors (50627202084).

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

33133225212 is a wasteful number, since it uses less digits than its factorization.

33133225212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76898 (or 76893 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

Adding to 33133225212 its reverse (21252233133), we get a palindrome (54385458345).

The spelling of 33133225212 in words is "thirty-three billion, one hundred thirty-three million, two hundred twenty-five thousand, two hundred twelve".