133231120212 has 48 divisors (see below), whose sum is σ = 314886426624. Its totient is φ = 43840524000.

The previous prime is 133231120193. The next prime is 133231120229. The reversal of 133231120212 is 212021132331.

133231120212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78387 + ... + 522117.

It is an arithmetic number, because the mean of its divisors is an integer number (6560133888).

Almost surely, 2^133231120212 is an apocalyptic number.

133231120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133231120212 is an abundant number, since it is smaller than the sum of its proper divisors (181655306412).

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

133231120212 is a wasteful number, since it uses less digits than its factorization.

133231120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444060 (or 444058 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 133231120212 its reverse (212021132331), we get a palindrome (345252252543).

The spelling of 133231120212 in words is "one hundred thirty-three billion, two hundred thirty-one million, one hundred twenty thousand, two hundred twelve".