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221011012010201 = 7173182502900091
BaseRepresentation
bin110010010000001000100010…
…110111001100000011011001
31001222112110001102120001211212
4302100020202313030003121
5212432021023033311301
62102015020211432505
764360342623542450
oct6220104267140331
91058473042501755
10221011012010201
116446a275597556
12209554b88b5735
1396423310ac5ca
143c80dc0a03b97
151a8400c2ee4bb
hexc90222dcc0d9

221011012010201 has 8 divisors (see below), whose sum is σ = 254044036928064. Its totient is φ = 188342992892880.

The previous prime is 221011012010177. The next prime is 221011012010213. The reversal of 221011012010201 is 102010210110122.

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

It is not a de Polignac number, because 221011012010201 - 26 = 221011012010137 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 (221011012000201) 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, 91251448835 + ... + 91251451256.

It is an arithmetic number, because the mean of its divisors is an integer number (31755504616008).

Almost surely, 2221011012010201 is an apocalyptic number.

It is an amenable number.

221011012010201 is a deficient number, since it is larger than the sum of its proper divisors (33033024917863).

221011012010201 is a wasteful number, since it uses less digits than its factorization.

221011012010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182502900271.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221011012010201 its reverse (102010210110122), we get a palindrome (323021222120323).

The spelling of 221011012010201 in words is "two hundred twenty-one trillion, eleven billion, twelve million, ten thousand, two hundred one".

Divisors: 1 7 173 1211 182502900091 1277520300637 31573001715743 221011012010201