33223230012 has 24 divisors (see below), whose sum is σ = 88595280256. Its totient is φ = 9492351408.

The previous prime is 33223229989. The next prime is 33223230013. The reversal of 33223230012 is 21003232233.

It is a super-2 number, since 2×33223230012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223230013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197757238 + ... + 197757405.

Almost surely, 2^33223230012 is an apocalyptic number.

It is an amenable number.

33223230012 is an abundant number, since it is smaller than the sum of its proper divisors (55372050244).

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

33223230012 is a wasteful number, since it uses less digits than its factorization.

33223230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395514657 (or 395514655 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 33223230012 its reverse (21003232233), we get a palindrome (54226462245).

The spelling of 33223230012 in words is "thirty-three billion, two hundred twenty-three million, two hundred thirty thousand, twelve".