Search a number
-
+
221000120201 = 7103330562871
BaseRepresentation
bin1100110111010010100…
…0100011011110001001
3210010102212201022202002
43031310220203132021
512110102012321301
6245305343320345
721652406012150
oct3156450433611
9703385638662
10221000120201
11857a8896343
12369b85b00b5
1317abcc768c3
14a9a7146597
155b36de716b
hex3374a23789

221000120201 has 8 divisors (see below), whose sum is σ = 252816077184. Its totient is φ = 189245291040.

The previous prime is 221000120189. The next prime is 221000120239. The reversal of 221000120201 is 102021000122.

It is a happy number.

221000120201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221000120201 - 222 = 220995925897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221000120701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15274205 + ... + 15288666.

It is an arithmetic number, because the mean of its divisors is an integer number (31602009648).

Almost surely, 2221000120201 is an apocalyptic number.

It is an amenable number.

221000120201 is a deficient number, since it is larger than the sum of its proper divisors (31815956983).

221000120201 is a wasteful number, since it uses less digits than its factorization.

221000120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30563911.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221000120201 its reverse (102021000122), we get a palindrome (323021120323).

The spelling of 221000120201 in words is "two hundred twenty-one billion, one hundred twenty thousand, two hundred one".

Divisors: 1 7 1033 7231 30562871 213940097 31571445743 221000120201