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220012212122112 = 293211678848897
BaseRepresentation
bin110010000001100110010101…
…101111111111001000000000
31001211222221222100100122102010
4302001212111233333020000
5212314140002300401422
62055532114231452520
764225233500556114
oct6201462557771000
91054887870318363
10220012212122112
1164114723044493
1220813a10827140
13959c0a7647177
143c4890db19744
151a680510e6b0c
hexc81995bff200

220012212122112 has 80 divisors (see below), whose sum is σ = 588904134410592. Its totient is φ = 72989833297920.

The previous prime is 220012212122099. The next prime is 220012212122117. The reversal of 220012212122112 is 211221212210022.

It is not an unprimeable number, because it can be changed into a prime (220012212122117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339100353 + ... + 339748544.

Almost surely, 2220012212122112 is an apocalyptic number.

It is an amenable number.

220012212122112 is an abundant number, since it is smaller than the sum of its proper divisors (368891922288480).

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

220012212122112 is an equidigital number, since it uses as much as digits as its factorization.

220012212122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678849129 (or 678849113 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220012212122112 its reverse (211221212210022), we get a palindrome (431233424332134).

The spelling of 220012212122112 in words is "two hundred twenty trillion, twelve billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 211 256 384 422 512 633 768 844 1266 1536 1688 2532 3376 5064 6752 10128 13504 20256 27008 40512 54016 81024 108032 162048 324096 678848897 1357697794 2036546691 2715395588 4073093382 5430791176 8146186764 10861582352 16292373528 21723164704 32584747056 43446329408 65169494112 86892658816 130338988224 143237117267 173785317632 260677976448 286474234534 347570635264 429711351801 521355952896 572948469068 859422703602 1042711905792 1145896938136 1718845407204 2291793876272 3437690814408 4583587752544 6875381628816 9167175505088 13750763257632 18334351010176 27501526515264 36668702020352 55003053030528 73337404040704 110006106061056 220012212122112