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12201110211100 = 2252122011102111
BaseRepresentation
bin1011000110001100101011…
…0101110000101000011100
31121012102012100102100121111
42301203022311300220130
53044400333203223400
641541040155511404
72366333612421406
oct261431265605034
947172170370544
1012201110211100
1139845096a5038
1214507a7158564
136a6737a263b5
143027732d9b76
151625a3a963ba
hexb18cad70a1c

12201110211100 has 18 divisors (see below), whose sum is σ = 26476409158304. Its totient is φ = 4880444084400.

The previous prime is 12201110211071. The next prime is 12201110211131. The reversal of 12201110211100 is 111201110221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61005550956 + ... + 61005551155.

Almost surely, 212201110211100 is an apocalyptic number.

12201110211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201110211100 is an abundant number, since it is smaller than the sum of its proper divisors (14275298947204).

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

12201110211100 is a wasteful number, since it uses less digits than its factorization.

12201110211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122011102125 (or 122011102118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12201110211100 its reverse (111201110221), we get a palindrome (12312311321321).

The spelling of 12201110211100 in words is "twelve trillion, two hundred one billion, one hundred ten million, two hundred eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 122011102111 244022204222 488044408444 610055510555 1220111021110 2440222042220 3050277552775 6100555105550 12201110211100