233221321212432 has 160 divisors (see below), whose sum is σ = 694097874892800. Its totient is φ = 66100384779264.

The previous prime is 233221321212421. The next prime is 233221321212449. The reversal of 233221321212432 is 234212123122332.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 233221321212393 and 233221321212402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19858413 + ... + 29339379.

It is an arithmetic number, because the mean of its divisors is an integer number (4338111718080).

Almost surely, 2^{233221321212432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 233221321212432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347048937446400).

233221321212432 is an abundant number, since it is smaller than the sum of its proper divisors (460876553680368).

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

233221321212432 is a wasteful number, since it uses less digits than its factorization.

233221321212432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481573 (or 9481567 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

Adding to 233221321212432 its reverse (234212123122332), we get a palindrome (467433444334764).

The spelling of 233221321212432 in words is "two hundred thirty-three trillion, two hundred twenty-one billion, three hundred twenty-one million, two hundred twelve thousand, four hundred thirty-two".