133031201212 has 24 divisors (see below), whose sum is σ = 286528741856. Its totient is φ = 52627727808.

The previous prime is 133031201189. The next prime is 133031201221. The reversal of 133031201212 is 212102130331.

It is a self number, because there is not a number n which added to its sum of digits gives 133031201212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182734803 + ... + 182735530.

Almost surely, 2^133031201212 is an apocalyptic number.

It is an amenable number.

133031201212 is an abundant number, since it is smaller than the sum of its proper divisors (153497540644).

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

133031201212 is a wasteful number, since it uses less digits than its factorization.

133031201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365470357 (or 365470355 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 133031201212 its reverse (212102130331), we get a palindrome (345133331543).

The spelling of 133031201212 in words is "one hundred thirty-three billion, thirty-one million, two hundred one thousand, two hundred twelve".