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212111012313012 = 223121720887695369
BaseRepresentation
bin110000001110100111110001…
…100010101011011110110100
31000211000121121010221222010110
4300032213301202223132310
5210300211323123004022
62031042242010423020
762451341422403421
oct6016476142533664
91024017533858113
10212111012313012
1161648858800a8a
121b958650a31a70
139147ca0b07137
143a5432901ad48
15197c762dbc00c
hexc0e9f18ab7b4

212111012313012 has 48 divisors (see below), whose sum is σ = 495356799450240. Its totient is φ = 70642090217472.

The previous prime is 212111012313007. The next prime is 212111012313047. The reversal of 212111012313012 is 210313210111212.

It is a self number, because there is not a number n which added to its sum of digits gives 212111012313012.

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, 304686064 + ... + 305381432.

It is an arithmetic number, because the mean of its divisors is an integer number (10319933321880).

Almost surely, 2212111012313012 is an apocalyptic number.

It is an amenable number.

212111012313012 is an abundant number, since it is smaller than the sum of its proper divisors (283245787137228).

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

212111012313012 is a wasteful number, since it uses less digits than its factorization.

212111012313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717480 (or 717478 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 212111012313012 its reverse (210313210111212), we get a palindrome (422424222424224).

The spelling of 212111012313012 in words is "two hundred twelve trillion, one hundred eleven billion, twelve million, three hundred thirteen thousand, twelve".

Divisors: 1 2 3 4 6 12 1217 2434 3651 4868 7302 14604 20887 41774 62661 83548 125322 250644 695369 1390738 2086107 2781476 4172214 8344428 25419479 50838958 76258437 101677916 152516874 305033748 846264073 1692528146 2538792219 3385056292 5077584438 10155168876 14524172303 29048344606 43572516909 58096689212 87145033818 174290067636 17675917692751 35351835385502 53027753078253 70703670771004 106055506156506 212111012313012