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1212212000210 = 251931972121737
BaseRepresentation
bin10001101000111101011…
…101110011010111010010
311021212221010201222221112
4101220331131303113102
5124330102233001320
62324514342053322
7153402512664131
oct21507535632722
94255833658845
101212212000210
11428107087652
12176b2741a242
138a407648933
144295836d918
15217ebd85ec5
hex11a3d7735d2

1212212000210 has 64 divisors (see below), whose sum is σ = 2395357332480. Its totient is φ = 439963176960.

The previous prime is 1212212000203. The next prime is 1212212000239. The reversal of 1212212000210 is 120002122121.

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 31 ways as a sum of consecutive naturals, for example, 489539 + ... + 1632198.

It is an arithmetic number, because the mean of its divisors is an integer number (37427458320).

Almost surely, 21212212000210 is an apocalyptic number.

1212212000210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212212000210 is a deficient number, since it is larger than the sum of its proper divisors (1183145332270).

1212212000210 is a wasteful number, since it uses less digits than its factorization.

1212212000210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121891.

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

Adding to 1212212000210 its reverse (120002122121), we get a palindrome (1332214122331).

The spelling of 1212212000210 in words is "one trillion, two hundred twelve billion, two hundred twelve million, two hundred ten", and thus it is an aban number.

Divisors: 1 2 5 10 19 31 38 62 95 97 155 190 194 310 485 589 970 1178 1843 2945 3007 3686 5890 6014 9215 15035 18430 30070 57133 114266 285665 571330 2121737 4243474 10608685 21217370 40313003 65773847 80626006 131547694 201565015 205808489 328869235 403130030 411616978 657738470 1029042445 1249703093 2058084890 2499406186 3910361291 6248515465 6380063159 7820722582 12497030930 12760126318 19551806455 31900315795 39103612910 63800631590 121221200021 242442400042 606106000105 1212212000210