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1111110212212 = 2271113277500053
BaseRepresentation
bin10000001010110011010…
…101000101101001110100
310221012222011220000200221
4100022303111011221310
5121201023203242322
62210234215544124
7143163226654540
oct20126325055164
93835864800627
101111110212212
11399245825960
1215b41068b044
1380a147b0740
143bac6c66a20
151dd810609c7
hex102b3545a74

1111110212212 has 48 divisors (see below), whose sum is σ = 2610720508032. Its totient is φ = 399600074880.

The previous prime is 1111110212183. The next prime is 1111110212257. The reversal of 1111110212212 is 2122120111111.

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, 138746023 + ... + 138754030.

It is an arithmetic number, because the mean of its divisors is an integer number (54390010584).

Almost surely, 21111110212212 is an apocalyptic number.

It is an amenable number.

1111110212212 is an abundant number, since it is smaller than the sum of its proper divisors (1499610295820).

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

1111110212212 is a wasteful number, since it uses less digits than its factorization.

1111110212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277500088 (or 277500086 counting only the distinct ones).

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

Adding to 1111110212212 its reverse (2122120111111), we get a palindrome (3233230323323).

The spelling of 1111110212212 in words is "one trillion, one hundred eleven billion, one hundred ten million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 11 13 14 22 26 28 44 52 77 91 143 154 182 286 308 364 572 1001 2002 4004 277500053 555000106 1110000212 1942500371 3052500583 3607500689 3885000742 6105001166 7215001378 7770001484 12210002332 14430002756 21367504081 25252504823 39682507579 42735008162 50505009646 79365015158 85470016324 101010019292 158730030316 277777553053 555555106106 1111110212212