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BaseRepresentation
bin101110101101100100110001…
…100100000111111111111101
3222221102001201100220120020001
4232231210301210013333331
5203411430210032114401
62004534430343354301
761162460222062630
oct5655446144077775
9887361640816201
10205442002223101
115a507511436086
121b060052a52991
138a831367b8c17
1438a3635a13c17
1518b4040842601

205442002223101 has 8 divisors (see below), whose sum is σ = 234868169836160. Its totient is φ = 176035162148208.

The previous prime is 205442002223069. The next prime is 205442002223123. The reversal of 205442002223101 is 101322200244502.

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

It is a cyclic number.

It is not a de Polignac number, because 205442002223101 - 25 = 205442002223069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205442002223101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205442002223701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4831861761 + ... + 4831904278.

It is an arithmetic number, because the mean of its divisors is an integer number (29358521229520).

Almost surely, 2205442002223101 is an apocalyptic number.

It is an amenable number.

205442002223101 is a deficient number, since it is larger than the sum of its proper divisors (29426167613059).

205442002223101 is an equidigital number, since it uses as much as digits as its factorization.

205442002223101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9663769083.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 205442002223101 its reverse (101322200244502), we get a palindrome (306764202467603).

The spelling of 205442002223101 in words is "two hundred five trillion, four hundred forty-two billion, two million, two hundred twenty-three thousand, one hundred one".