33020223012 has 72 divisors (see below), whose sum is σ = 96142964736. Its totient is φ = 9360054144.

The previous prime is 33020222999. The next prime is 33020223017. The reversal of 33020223012 is 21032202033.

It is a happy number.

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 (33020223017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 483873 + ... + 547880.

Almost surely, 2^33020223012 is an apocalyptic number.

It is an amenable number.

33020223012 is an abundant number, since it is smaller than the sum of its proper divisors (63122741724).

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

33020223012 is a wasteful number, since it uses less digits than its factorization.

33020223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031897 (or 1031892 counting only the distinct ones).

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

Adding to 33020223012 its reverse (21032202033), we get a palindrome (54052425045).

The spelling of 33020223012 in words is "thirty-three billion, twenty million, two hundred twenty-three thousand, twelve".