203211221330 has 32 divisors (see below), whose sum is σ = 396093520368. Its totient is φ = 74617286400.

The previous prime is 203211221287. The next prime is 203211221333. The reversal of 203211221330 is 33122112302.

It can be written as a sum of positive squares in 8 ways, for example, as 99660289 + 203111561041 = 9983^2 + 450679^2 .

It is not an unprimeable number, because it can be changed into a prime (203211221333) 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 15 ways as a sum of consecutive naturals, for example, 4294601 + ... + 4341660.

Almost surely, 2^203211221330 is an apocalyptic number.

203211221330 is a deficient number, since it is larger than the sum of its proper divisors (192882299038).

203211221330 is a wasteful number, since it uses less digits than its factorization.

203211221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636462.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203211221330 its reverse (33122112302), we get a palindrome (236333333632).

The spelling of 203211221330 in words is "two hundred three billion, two hundred eleven million, two hundred twenty-one thousand, three hundred thirty".