233220321220432 has 80 divisors (see below), whose sum is σ = 558935443897600. Its totient is φ = 91799351018496.

The previous prime is 233220321220429. The next prime is 233220321220459. The reversal of 233220321220432 is 234022123022332.

It is a super-2 number, since 2×233220321220432² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233220321220394 and 233220321220403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402169533 + ... + 402749020.

It is an arithmetic number, because the mean of its divisors is an integer number (6986693048720).

Almost surely, 2^{233220321220432} is an apocalyptic number.

It is an amenable number.

233220321220432 is an abundant number, since it is smaller than the sum of its proper divisors (325715122677168).

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

233220321220432 is a wasteful number, since it uses less digits than its factorization.

233220321220432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804918780 (or 804918774 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 233220321220432 its reverse (234022123022332), we get a palindrome (467242444242764).

The spelling of 233220321220432 in words is "two hundred thirty-three trillion, two hundred twenty billion, three hundred twenty-one million, two hundred twenty thousand, four hundred thirty-two".