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212012120210 = 25112383799257
BaseRepresentation
bin1100010101110011101…
…0000011100010010010
3202021020111012121122112
43011130322003202102
511433200100321320
6241221431305322
721213600200432
oct3053472034222
9667214177575
10212012120210
1181a06350980
123510a51b242
1316cb9b38607
14a3935762c2
1557accdaec5
hex315ce83892

212012120210 has 32 divisors (see below), whose sum is σ = 434415353472. Its totient is φ = 73743345280.

The previous prime is 212012120209. The next prime is 212012120227. The reversal of 212012120210 is 12021210212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41897099 + ... + 41902158.

It is an arithmetic number, because the mean of its divisors is an integer number (13575479796).

Almost surely, 2212012120210 is an apocalyptic number.

212012120210 is an abundant number, since it is smaller than the sum of its proper divisors (222403233262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212012120210 is a wasteful number, since it uses less digits than its factorization.

212012120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83799298.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212012120210 its reverse (12021210212), we get a palindrome (224033330422).

The spelling of 212012120210 in words is "two hundred twelve billion, twelve million, one hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 83799257 167598514 418996285 837992570 921791827 1843583654 1927382911 3854765822 4608959135 9217918270 9636914555 19273829110 21201212021 42402424042 106006060105 212012120210