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1111011212012 = 2213383222125117
BaseRepresentation
bin10000001010101101011…
…011011011101011101100
310221012201021121021221212
4100022231123123223230
5121200322332241022
62210220322013552
7143160615325322
oct20125533335354
93835637537855
101111011212012
113991a4957609
1215b3a34a72b8
13809ca12a040
143bab7a55d12
151dd775073e2
hex102ad6dbaec

1111011212012 has 48 divisors (see below), whose sum is σ = 2100324559872. Its totient is φ = 511184943360.

The previous prime is 1111011212009. The next prime is 1111011212041. The reversal of 1111011212012 is 2102121101111.

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, 44220878 + ... + 44245994.

It is an arithmetic number, because the mean of its divisors is an integer number (43756761664).

Almost surely, 21111011212012 is an apocalyptic number.

It is an amenable number.

1111011212012 is a deficient number, since it is larger than the sum of its proper divisors (989313347860).

1111011212012 is a wasteful number, since it uses less digits than its factorization.

1111011212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27738 (or 27736 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111011212012 its reverse (2102121101111), we get a palindrome (3213132313123).

The spelling of 1111011212012 in words is "one trillion, one hundred eleven billion, eleven million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 13 26 52 383 766 1532 2221 4442 4979 8884 9958 19916 25117 28873 50234 57746 100468 115492 326521 653042 850643 1306084 1701286 3402572 9619811 11058359 19239622 22116718 38479244 44233436 55784857 111569714 125057543 223139428 250115086 500230172 725203141 1450406282 2900812564 21365600231 42731200462 85462400924 277752803003 555505606006 1111011212012