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12110211111212 = 2247103961998091
BaseRepresentation
bin1011000000111010000011…
…0101001101100100101100
31120212201120102201122022022
42300032200311031210230
53041403203021024322
641431204300405312
72356635215005364
oct260164065154454
946781512648268
1012110211111212
113949a03506995
121437059246838
1369acac864366
142dc1ccc379a4
15160033819942
hexb03a0d4d92c

12110211111212 has 24 divisors (see below), whose sum is σ = 21664613268480. Its totient is φ = 5920569602640.

The previous prime is 12110211111181. The next prime is 12110211111223. The reversal of 12110211111212 is 21211111201121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30803714 + ... + 31194377.

It is an arithmetic number, because the mean of its divisors is an integer number (902692219520).

Almost surely, 212110211111212 is an apocalyptic number.

It is an amenable number.

12110211111212 is a deficient number, since it is larger than the sum of its proper divisors (9554402157268).

12110211111212 is a wasteful number, since it uses less digits than its factorization.

12110211111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61999181 (or 61999179 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12110211111212 its reverse (21211111201121), we get a palindrome (33321322312333).

The spelling of 12110211111212 in words is "twelve trillion, one hundred ten billion, two hundred eleven million, one hundred eleven thousand, two hundred twelve".

Divisors: 1 2 4 47 94 188 1039 2078 4156 48833 97666 195332 61998091 123996182 247992364 2913910277 5827820554 11655641108 64416016549 128832033098 257664066196 3027552777803 6055105555606 12110211111212