33223200012 has 72 divisors (see below), whose sum is σ = 85875019776. Its totient is φ = 10825212384.

The previous prime is 33223200007. The next prime is 33223200013. The reversal of 33223200012 is 21000232233.

It is a happy number.

33223200012 is a `hidden beast` number, since 332 + 2 + 320 + 0 + 0 + 12 = 666.

It is a super-2 number, since 2×33223200012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33223200013) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1387413 + ... + 1411155.

It is an arithmetic number, because the mean of its divisors is an integer number (1192708608).

Almost surely, 2^33223200012 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 33223200012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42937509888).

33223200012 is an abundant number, since it is smaller than the sum of its proper divisors (52651819764).

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

33223200012 is a wasteful number, since it uses less digits than its factorization.

33223200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24627 (or 24622 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 33223200012 its reverse (21000232233), we get a palindrome (54223432245).

The spelling of 33223200012 in words is "thirty-three billion, two hundred twenty-three million, two hundred thousand, twelve".