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212021312002211 = 17196157118845647
BaseRepresentation
bin110000001101010100001110…
…111111001001100010100011
31000210201001001210000001022002
4300031110032333021202203
5210242224121333032321
62030533125053434215
762442014522343335
oct6015241677114243
91023631053001262
10212021312002211
1161613808271918
121b94319849b96b
13913c6a710435a
143a4dc59c51455
15197a262edc20b
hexc0d50efc98a3

212021312002211 has 32 divisors (see below), whose sum is σ = 240603141841920. Its totient is φ = 185622074841600.

The previous prime is 212021312002207. The next prime is 212021312002309. The reversal of 212021312002211 is 112200213120212.

It is not a de Polignac number, because 212021312002211 - 22 = 212021312002207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021332002211) 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 31 ways as a sum of consecutive naturals, for example, 1827590 + ... + 20673236.

It is an arithmetic number, because the mean of its divisors is an integer number (7518848182560).

Almost surely, 2212021312002211 is an apocalyptic number.

212021312002211 is a deficient number, since it is larger than the sum of its proper divisors (28581829839709).

212021312002211 is a wasteful number, since it uses less digits than its factorization.

212021312002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18846315.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212021312002211 its reverse (112200213120212), we get a palindrome (324221525122423).

The spelling of 212021312002211 in words is "two hundred twelve trillion, twenty-one billion, three hundred twelve million, two thousand, two hundred eleven".

Divisors: 1 17 19 61 323 571 1037 1159 9707 10849 19703 34831 184433 592127 661789 11250413 18845647 320375999 358067293 1149584467 6087143981 10760864437 19542935939 21842104873 182934695429 204456424303 371315782841 656412730657 3475759213151 11159016421169 12471841882483 212021312002211