201230022321 has 6 divisors (see below), whose sum is σ = 290665587810. Its totient is φ = 134153348208.

The previous prime is 201230022307. The next prime is 201230022401. The reversal of 201230022321 is 123220032102.

201230022321 is a `hidden beast` number, since 20 + 1 + 2 + 300 + 22 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131795137296 + 69434885025 = 363036^2 + 263505^2 .

It is not a de Polignac number, because 201230022321 - 2¹⁰ = 201230021297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201230022294 and 201230022303.

It is not an unprimeable number, because it can be changed into a prime (201230022121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11179445676 + ... + 11179445693.

It is an arithmetic number, because the mean of its divisors is an integer number (48444264635).

Almost surely, 2^201230022321 is an apocalyptic number.

It is an amenable number.

201230022321 is a deficient number, since it is larger than the sum of its proper divisors (89435565489).

201230022321 is a wasteful number, since it uses less digits than its factorization.

201230022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22358891375 (or 22358891372 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201230022321 its reverse (123220032102), we get a palindrome (324450054423).

The spelling of 201230022321 in words is "two hundred one billion, two hundred thirty million, twenty-two thousand, three hundred twenty-one".