33321313212 has 24 divisors (see below), whose sum is σ = 84817888512. Its totient is φ = 10097367600.

The previous prime is 33321313187. The next prime is 33321313261. The reversal of 33321313212 is 21231312333.

It is a super-2 number, since 2×33321313212² (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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126216964 + ... + 126217227.

It is an arithmetic number, because the mean of its divisors is an integer number (3534078688).

Almost surely, 2^33321313212 is an apocalyptic number.

It is an amenable number.

33321313212 is an abundant number, since it is smaller than the sum of its proper divisors (51496575300).

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

33321313212 is a wasteful number, since it uses less digits than its factorization.

33321313212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252434209 (or 252434207 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

Adding to 33321313212 its reverse (21231312333), we get a palindrome (54552625545).

The spelling of 33321313212 in words is "thirty-three billion, three hundred twenty-one million, three hundred thirteen thousand, two hundred twelve".