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2112010111212 = 223622992825099
BaseRepresentation
bin11110101110111101100…
…111001100100011101100
321110220110121122001112120
4132232331213030203230
5234100344042024322
64254124414232540
7305405402512041
oct36567547144354
97426417561476
102112010111212
11744775714231
122a13a3ab5750
131242143389a1
1474316a011c8
1539e117d3a5c
hex1ebbd9cc8ec

2112010111212 has 24 divisors (see below), whose sum is σ = 4928104440000. Its totient is φ = 703991820816.

The previous prime is 2112010111187. The next prime is 2112010111213. The reversal of 2112010111212 is 2121110102112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2112010111191 and 2112010111200.

It is not an unprimeable number, because it can be changed into a prime (2112010111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664962 + ... + 2160137.

It is an arithmetic number, because the mean of its divisors is an integer number (205337685000).

Almost surely, 22112010111212 is an apocalyptic number.

It is an amenable number.

2112010111212 is an abundant number, since it is smaller than the sum of its proper divisors (2816094328788).

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

2112010111212 is a wasteful number, since it uses less digits than its factorization.

2112010111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887405 (or 2887403 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2112010111212 its reverse (2121110102112), we get a palindrome (4233120213324).

It can be divided in two parts, 2112010 and 111212, that added together give a palindrome (2223222).

The spelling of 2112010111212 in words is "two trillion, one hundred twelve billion, ten million, one hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 62299 124598 186897 249196 373794 747588 2825099 5650198 8475297 11300396 16950594 33901188 176000842601 352001685202 528002527803 704003370404 1056005055606 2112010111212