33221012232 has 64 divisors (see below), whose sum is σ = 88052832000. Its totient is φ = 10415352384.

The previous prime is 33221012183. The next prime is 33221012243. The reversal of 33221012232 is 23221012233.

It is a happy number.

It is a super-2 number, since 2×33221012232² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33221012199 and 33221012208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198678 + ... + 325445.

It is an arithmetic number, because the mean of its divisors is an integer number (1375825500).

Almost surely, 2^33221012232 is an apocalyptic number.

It is an amenable number.

33221012232 is an abundant number, since it is smaller than the sum of its proper divisors (54831819768).

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

33221012232 is a wasteful number, since it uses less digits than its factorization.

33221012232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524290 (or 524286 counting only the distinct ones).

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

Adding to 33221012232 its reverse (23221012233), we get a palindrome (56442024465).

Subtracting from 33221012232 its reverse (23221012233), we obtain a palindrome (9999999999).

The spelling of 33221012232 in words is "thirty-three billion, two hundred twenty-one million, twelve thousand, two hundred thirty-two".