33212131212 has 48 divisors (see below), whose sum is σ = 83480821760. Its totient is φ = 10216093248.

The previous prime is 33212131181. The next prime is 33212131213. The reversal of 33212131212 is 21213121233.

It is a super-2 number, since 2×33212131212² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (33212131213) 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, 529239 + ... + 588657.

Almost surely, 2^33212131212 is an apocalyptic number.

It is an amenable number.

33212131212 is an abundant number, since it is smaller than the sum of its proper divisors (50268690548).

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

33212131212 is a wasteful number, since it uses less digits than its factorization.

33212131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63022 (or 63020 counting only the distinct ones).

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

Adding to 33212131212 its reverse (21213121233), we get a palindrome (54425252445).

The spelling of 33212131212 in words is "thirty-three billion, two hundred twelve million, one hundred thirty-one thousand, two hundred twelve".