33223201212 has 24 divisors (see below), whose sum is σ = 80193934800. Its totient is φ = 10692524416.

The previous prime is 33223201211. The next prime is 33223201237. The reversal of 33223201212 is 21210232233.

It is a happy number.

It is a super-2 number, since 2×33223201212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223201211) 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, 47734137 + ... + 47734832.

It is an arithmetic number, because the mean of its divisors is an integer number (3341413950).

Almost surely, 2^33223201212 is an apocalyptic number.

It is an amenable number.

33223201212 is an abundant number, since it is smaller than the sum of its proper divisors (46970733588).

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

33223201212 is a wasteful number, since it uses less digits than its factorization.

33223201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95469005 (or 95469003 counting only the distinct ones).

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

Adding to 33223201212 its reverse (21210232233), we get a palindrome (54433433445).

The spelling of 33223201212 in words is "thirty-three billion, two hundred twenty-three million, two hundred one thousand, two hundred twelve".