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212112020211 = 37213372999873
BaseRepresentation
bin1100010110001011011…
…1001001001011110011
3202021111110012001200120
43011202313021023303
511433401134121321
6241235400421323
721216222265200
oct3054267111363
9667443161616
10212112020211
1181a57784263
1235137a77843
1317004745740
14a3a293cca7
1557b6970ec6
hex3162dc92f3

212112020211 has 48 divisors (see below), whose sum is σ = 363872716704. Its totient is φ = 108859355136.

The previous prime is 212112020209. The next prime is 212112020221. The reversal of 212112020211 is 112020211212.

It is not a de Polignac number, because 212112020211 - 21 = 212112020209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212112020221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1429230 + ... + 1570643.

It is an arithmetic number, because the mean of its divisors is an integer number (7580681598).

Almost surely, 2212112020211 is an apocalyptic number.

212112020211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212112020211 is a deficient number, since it is larger than the sum of its proper divisors (151760696493).

212112020211 is a wasteful number, since it uses less digits than its factorization.

212112020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999940 (or 2999933 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212112020211 its reverse (112020211212), we get a palindrome (324132231423).

It can be divided in two parts, 212 and 112020211, that multiplied together give a palindrome (23748284732).

The spelling of 212112020211 in words is "two hundred twelve billion, one hundred twelve million, twenty thousand, two hundred eleven".

Divisors: 1 3 7 13 21 37 39 49 91 111 147 259 273 481 637 777 1443 1813 1911 3367 5439 10101 23569 70707 2999873 8999619 20999111 38998349 62997333 110995301 116995047 146993777 272988443 332985903 440981331 776967107 818965329 1442938913 1910919101 2330901321 4328816739 5438769749 5732757303 10100572391 16316309247 30301717173 70704006737 212112020211