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12212001201200 = 245297314742299
BaseRepresentation
bin1011000110110101001111…
…1111100101110000110000
31121020110022100201222101012
42301231103333211300300
53100040134301414300
641550041011330052
72400200526335213
oct261552377456060
947213270658335
1012212001201200
1139890983480a9
1214529265b0928
136a77821a4238
143030c791177a
151629deca1435
hexb1b53fe5c30

12212001201200 has 60 divisors (see below), whose sum is σ = 29641800329400. Its totient is φ = 4834441697280.

The previous prime is 12212001201199. The next prime is 12212001201217. The reversal of 12212001201200 is 210210021221.

It is a super-2 number, since 2×122120012012002 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157332350 + ... + 157409949.

It is an arithmetic number, because the mean of its divisors is an integer number (494030005490).

Almost surely, 212212001201200 is an apocalyptic number.

12212001201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212001201200 is an abundant number, since it is smaller than the sum of its proper divisors (17429799128200).

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

12212001201200 is a wasteful number, since it uses less digits than its factorization.

12212001201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314742414 (or 314742403 counting only the distinct ones).

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

Adding to 12212001201200 its reverse (210210021221), we get a palindrome (12422211222421).

The spelling of 12212001201200 in words is "twelve trillion, two hundred twelve billion, one million, two hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 97 100 194 200 388 400 485 776 970 1552 1940 2425 3880 4850 7760 9700 19400 38800 314742299 629484598 1258969196 1573711495 2517938392 3147422990 5035876784 6294845980 7868557475 12589691960 15737114950 25179383920 30530003003 31474229900 61060006006 62948459800 122120012012 125896919600 152650015015 244240024024 305300030030 488480048048 610600060060 763250075075 1221200120120 1526500150150 2442400240240 3053000300300 6106000600600 12212001201200