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121122010212012 = 2232231189712295757
BaseRepresentation
bin11011100010100011101010…
…011001001010011010101100
3120212212011002010221102101200
4123202203222121022122230
5111333430334103241022
61105334403333405500
734340530216502055
oct3342435231123254
9525764063842350
10121122010212012
1135658613136267
1211702310199890
1352779ab1c1124
1421ca49d7b572c
15e009dc5a0bac
hex6e28ea64a6ac

121122010212012 has 72 divisors (see below), whose sum is σ = 319508124245856. Its totient is φ = 38615362731264.

The previous prime is 121122010211987. The next prime is 121122010212029. The reversal of 121122010212012 is 210212010221121.

121122010212012 is a `hidden beast` number, since 1 + 211 + 220 + 10 + 21 + 201 + 2 = 666.

121122010212012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3702838 + ... + 15998594.

It is an arithmetic number, because the mean of its divisors is an integer number (4437612836748).

Almost surely, 2121122010212012 is an apocalyptic number.

121122010212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121122010212012 is an abundant number, since it is smaller than the sum of its proper divisors (198386114033844).

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

121122010212012 is a wasteful number, since it uses less digits than its factorization.

121122010212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12307687 (or 12307682 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121122010212012 its reverse (210212010221121), we get a palindrome (331334020433133).

The spelling of 121122010212012 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, ten million, two hundred twelve thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 11897 23794 35691 47588 71382 107073 142764 214146 273631 428292 547262 820893 1094524 1641786 2462679 3283572 4925358 9850716 12295757 24591514 36887271 49183028 73774542 110661813 147549084 221323626 282802411 442647252 565604822 848407233 1131209644 1696814466 2545221699 3393628932 5090443398 10180886796 146282621029 292565242058 438847863087 585130484116 877695726174 1316543589261 1755391452348 2633087178522 3364500283667 5266174357044 6729000567334 10093500851001 13458001134668 20187001702002 30280502553003 40374003404004 60561005106006 121122010212012