133212231331212 has 48 divisors (see below), whose sum is σ = 345483522784512. Its totient is φ = 39605694847680.

The previous prime is 133212231331199. The next prime is 133212231331259. The reversal of 133212231331212 is 212133132212331.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 133212231331212.

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, 9520592728 + ... + 9520606719.

It is an arithmetic number, because the mean of its divisors is an integer number (7197573391344).

Almost surely, 2^{133212231331212} is an apocalyptic number.

133212231331212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133212231331212 is an abundant number, since it is smaller than the sum of its proper divisors (212271291453300).

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

133212231331212 is a wasteful number, since it uses less digits than its factorization.

133212231331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19041199518 (or 19041199516 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

Adding to 133212231331212 its reverse (212133132212331), we get a palindrome (345345363543543).

The spelling of 133212231331212 in words is "one hundred thirty-three trillion, two hundred twelve billion, two hundred thirty-one million, three hundred thirty-one thousand, two hundred twelve".