201330332232221 has 2 divisors, whose sum is σ = 201330332232222. Its totient is φ = 201330332232220.

The previous prime is 201330332232203. The next prime is 201330332232251. The reversal of 201330332232221 is 122232233033102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118975977727321 + 82354354504900 = 10907611^2 + 9074930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201330332232221 is a prime.

It is a super-2 number, since 2×201330332232221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201330332232251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665166116110 + 100665166116111.

It is an arithmetic number, because the mean of its divisors is an integer number (100665166116111).

Almost surely, 2^{201330332232221} is an apocalyptic number.

It is an amenable number.

201330332232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

201330332232221 is an equidigital number, since it uses as much as digits as its factorization.

201330332232221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 201330332232221 its reverse (122232233033102), we get a palindrome (323562565265323).

The spelling of 201330332232221 in words is "two hundred one trillion, three hundred thirty billion, three hundred thirty-two million, two hundred thirty-two thousand, two hundred twenty-one".