33012212224 has 80 divisors (see below), whose sum is σ = 67920652800. Its totient is φ = 16017813504.

The previous prime is 33012212197. The next prime is 33012212231. The reversal of 33012212224 is 42221221033.

It is a junction number, because it is equal to n+sod(n) for n = 33012212195 and 33012212204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7935457 + ... + 7939615.

It is an arithmetic number, because the mean of its divisors is an integer number (849008160).

Almost surely, 2^33012212224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33012212224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33960326400).

33012212224 is an abundant number, since it is smaller than the sum of its proper divisors (34908440576).

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

33012212224 is an equidigital number, since it uses as much as digits as its factorization.

33012212224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633 (or 4617 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 33012212224 its reverse (42221221033), we get a palindrome (75233433257).

The spelling of 33012212224 in words is "thirty-three billion, twelve million, two hundred twelve thousand, two hundred twenty-four".