221232403231330 has 8 divisors (see below), whose sum is σ = 398218325816412. Its totient is φ = 88492961292528.

The previous prime is 221232403231327. The next prime is 221232403231331. The reversal of 221232403231330 is 33132304232122.

It can be written as a sum of positive squares in 2 ways, for example, as 204171034278649 + 17061368952681 = 14288843^2 + 4130541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221232403231292 and 221232403231301.

It is not an unprimeable number, because it can be changed into a prime (221232403231331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11061620161557 + ... + 11061620161576.

Almost surely, 2^{221232403231330} is an apocalyptic number.

221232403231330 is a deficient number, since it is larger than the sum of its proper divisors (176985922585082).

221232403231330 is a wasteful number, since it uses less digits than its factorization.

221232403231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22123240323140.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 221232403231330 its reverse (33132304232122), we get a palindrome (254364707463452).

The spelling of 221232403231330 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, four hundred three million, two hundred thirty-one thousand, three hundred thirty".