233221231330 has 16 divisors (see below), whose sum is σ = 419804764920. Its totient is φ = 93287037312.

The previous prime is 233221231307. The next prime is 233221231339. The reversal of 233221231330 is 33132122332.

It can be written as a sum of positive squares in 4 ways, for example, as 129700099321 + 103521132009 = 360139^2 + 321747^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233221231295 and 233221231304.

It is not an unprimeable number, because it can be changed into a prime (233221231339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 690406 + ... + 971134.

Almost surely, 2^233221231330 is an apocalyptic number.

233221231330 is a deficient number, since it is larger than the sum of its proper divisors (186583533590).

233221231330 is a wasteful number, since it uses less digits than its factorization.

233221231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363813.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 233221231330 its reverse (33132122332), we get a palindrome (266353353662).

The spelling of 233221231330 in words is "two hundred thirty-three billion, two hundred twenty-one million, two hundred thirty-one thousand, three hundred thirty".