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12010212001212 = 2234632161665227
BaseRepresentation
bin1010111011000101100001…
…1010111000010110111100
31120112011110022202111220120
42232301120122320112330
53033233403233014322
641313225404414540
72346465151414545
oct256613032702674
946464408674816
1012010212001212
113910558629527
12141b7ab847450
136917342a6a59
142d7423d694cc
1515c62e708a5c
hexaec586b85bc

12010212001212 has 24 divisors (see below), whose sum is σ = 28084354642176. Its totient is φ = 3994757337648.

The previous prime is 12010212001157. The next prime is 12010212001213. The reversal of 12010212001212 is 21210021201021.

It is a junction number, because it is equal to n+sod(n) for n = 12010212001191 and 12010212001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010212001213) 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 7 ways as a sum of consecutive naturals, for example, 1080827058 + ... + 1080838169.

It is an arithmetic number, because the mean of its divisors is an integer number (1170181443424).

Almost surely, 212010212001212 is an apocalyptic number.

12010212001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12010212001212 is an abundant number, since it is smaller than the sum of its proper divisors (16074142640964).

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

12010212001212 is a wasteful number, since it uses less digits than its factorization.

12010212001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161665697 (or 2161665695 counting only the distinct ones).

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

Adding to 12010212001212 its reverse (21210021201021), we get a palindrome (33220233202233).

The spelling of 12010212001212 in words is "twelve trillion, ten billion, two hundred twelve million, one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 463 926 1389 1852 2778 5556 2161665227 4323330454 6484995681 8646660908 12969991362 25939982724 1000851000101 2001702000202 3002553000303 4003404000404 6005106000606 12010212001212