33222321012 has 24 divisors (see below), whose sum is σ = 77584088736. Its totient is φ = 11064772768.

The previous prime is 33222321007. The next prime is 33222321017. The reversal of 33222321012 is 21012322233.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33222321007) and next prime (33222321017).

It is a super-2 number, since 2×33222321012² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33222321012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33222321017) by changing a digit.

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, 1151943 + ... + 1180430.

It is an arithmetic number, because the mean of its divisors is an integer number (3232670364).

Almost surely, 2^33222321012 is an apocalyptic number.

It is an amenable number.

33222321012 is an abundant number, since it is smaller than the sum of its proper divisors (44361767724).

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

33222321012 is a wasteful number, since it uses less digits than its factorization.

33222321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333567 (or 2333565 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33222321012 its reverse (21012322233), we get a palindrome (54234643245).

The spelling of 33222321012 in words is "thirty-three billion, two hundred twenty-two million, three hundred twenty-one thousand, twelve".