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122012110212 = 22359172333489
BaseRepresentation
bin111000110100001111…
…1010000110110000100
3102122221020022101210220
41301220133100312010
53444340100011322
6132015050544340
711546400552636
oct1615037206604
9378836271726
10122012110212
1147821723323
121b7917380b0
13b676011925
145c96674a56
15329195b55c
hex1c687d0d84

122012110212 has 24 divisors (see below), whose sum is σ = 289520263200. Its totient is φ = 39981369216.

The previous prime is 122012110193. The next prime is 122012110223. The reversal of 122012110212 is 212011210221.

It is a junction number, because it is equal to n+sod(n) for n = 122012110191 and 122012110200.

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 7 ways as a sum of consecutive naturals, for example, 86166037 + ... + 86167452.

It is an arithmetic number, because the mean of its divisors is an integer number (12063344300).

Almost surely, 2122012110212 is an apocalyptic number.

122012110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122012110212 is an abundant number, since it is smaller than the sum of its proper divisors (167508152988).

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

122012110212 is a wasteful number, since it uses less digits than its factorization.

122012110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172333555 (or 172333553 counting only the distinct ones).

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

Adding to 122012110212 its reverse (212011210221), we get a palindrome (334023320433).

The spelling of 122012110212 in words is "one hundred twenty-two billion, twelve million, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 172333489 344666978 517000467 689333956 1034000934 2068001868 10167675851 20335351702 30503027553 40670703404 61006055106 122012110212