133211212212 has 48 divisors (see below), whose sum is σ = 338768861760. Its totient is φ = 40494229248.

The previous prime is 133211212207. The next prime is 133211212213. The reversal of 133211212212 is 212212112331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133211212213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5131137 + ... + 5157032.

It is an arithmetic number, because the mean of its divisors is an integer number (7057684620).

Almost surely, 2^133211212212 is an apocalyptic number.

133211212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133211212212 is an abundant number, since it is smaller than the sum of its proper divisors (205557649548).

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

133211212212 is a wasteful number, since it uses less digits than its factorization.

133211212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10288272 (or 10288270 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

Adding to 133211212212 its reverse (212212112331), we get a palindrome (345423324543).

The spelling of 133211212212 in words is "one hundred thirty-three billion, two hundred eleven million, two hundred twelve thousand, two hundred twelve".