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2112110201212 = 221182372078093
BaseRepresentation
bin11110101111000011100…
…101000000100101111100
321110220201120222011012121
4132233003211000211330
5234101100202414322
64254142351412324
7305411026330444
oct36570345004574
97426646864177
102112110201212
11744817167340
122a14115240a4
1312422bcb143b
1474326017124
1539e1a4a4ec7
hex1ebc394097c

2112110201212 has 48 divisors (see below), whose sum is σ = 4038168863232. Its totient is φ = 958632050880.

The previous prime is 2112110201209. The next prime is 2112110201261. The reversal of 2112110201212 is 2121020112112.

It is a super-2 number, since 2×21121102012122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260975838 + ... + 260983930.

It is an arithmetic number, because the mean of its divisors is an integer number (84128517984).

Almost surely, 22112110201212 is an apocalyptic number.

2112110201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2112110201212 is a deficient number, since it is larger than the sum of its proper divisors (1926058662020).

2112110201212 is a wasteful number, since it uses less digits than its factorization.

2112110201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16138 (or 16136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2112110201212 its reverse (2121020112112), we get a palindrome (4233130313324).

The spelling of 2112110201212 in words is "two trillion, one hundred twelve billion, one hundred ten million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 823 1646 3292 7207 8093 9053 14414 16186 18106 28828 32372 36212 79277 89023 158554 178046 317108 356092 5931361 6660539 11862722 13321078 23725444 26642156 58326251 65244971 73265929 116652502 130489942 146531858 233305004 260979884 293063716 641588761 1283177522 2566355044 48002504573 96005009146 192010018292 528027550303 1056055100606 2112110201212