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212201112111211 = 1721151637932149
BaseRepresentation
bin110000001111111011101011…
…111010001000100001101011
31000211100020011100121221122101
4300033323223322020201223
5210303200334200024321
62031151502314034231
762461011243142006
oct6017735372104153
91024306140557571
10212201112111211
1161682a93795a23
121b971bb7118977
13915362c4cc0b2
143a5883529653d
15197ec87dad791
hexc0feebe8886b

212201112111211 has 12 divisors (see below), whose sum is σ = 225613635897600. Its totient is φ = 199545175894400.

The previous prime is 212201112111203. The next prime is 212201112111223. The reversal of 212201112111211 is 112111211102212.

It is not a de Polignac number, because 212201112111211 - 23 = 212201112111203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212201115111211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318633436 + ... + 319298713.

It is an arithmetic number, because the mean of its divisors is an integer number (18801136324800).

Almost surely, 2212201112111211 is an apocalyptic number.

212201112111211 is a deficient number, since it is larger than the sum of its proper divisors (13412523786389).

212201112111211 is a wasteful number, since it uses less digits than its factorization.

212201112111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637933334 (or 637933317 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 212201112111211 its reverse (112111211102212), we get a palindrome (324312323213423).

The spelling of 212201112111211 in words is "two hundred twelve trillion, two hundred one billion, one hundred twelve million, one hundred eleven thousand, two hundred eleven".

Divisors: 1 17 289 1151 19567 332639 637932149 10844846533 184362391061 734259903499 12482418359483 212201112111211