201221203302330 has 64 divisors (see below), whose sum is σ = 490091143127040. Its totient is φ = 52866312542784.

The previous prime is 201221203302299. The next prime is 201221203302349. The reversal of 201221203302330 is 33203302122102.

201221203302330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201221203302330.

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, 89796274 + ... + 92009853.

It is an arithmetic number, because the mean of its divisors is an integer number (7657674111360).

Almost surely, 2^{201221203302330} is an apocalyptic number.

201221203302330 is an abundant number, since it is smaller than the sum of its proper divisors (288869939824710).

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

201221203302330 is a wasteful number, since it uses less digits than its factorization.

201221203302330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181806683.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 201221203302330 its reverse (33203302122102), we get a palindrome (234424505424432).

The spelling of 201221203302330 in words is "two hundred one trillion, two hundred twenty-one billion, two hundred three million, three hundred two thousand, three hundred thirty".