133330212 has 72 divisors (see below), whose sum is σ = 351624000. Its totient is φ = 44175456.

The previous prime is 133330189. The next prime is 133330247. The reversal of 133330212 is 212033331.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222289 + ... + 222887.

Almost surely, 2^133330212 is an apocalyptic number.

133330212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133330212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175812000).

133330212 is an abundant number, since it is smaller than the sum of its proper divisors (218293788).

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

133330212 is a wasteful number, since it uses less digits than its factorization.

133330212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133330212 is about 11546.8702253035. The cubic root of 133330212 is about 510.8689683860.

Adding to 133330212 its reverse (212033331), we get a palindrome (345363543).

The spelling of 133330212 in words is "one hundred thirty-three million, three hundred thirty thousand, two hundred twelve".