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2112100221100 = 225221121002211
BaseRepresentation
bin11110101111000010111…
…110111100000010101100
321110220200220012010001211
4132233002332330002230
5234101040124033400
64254141353444204
7305410545443062
oct36570276740254
97426626163054
102112100221100
11744811570111
122a140a110664
13124229bc894c
147432497a032
1539e19682dba
hex1ebc2fbc0ac

2112100221100 has 18 divisors (see below), whose sum is σ = 4583257480004. Its totient is φ = 844840088400.

The previous prime is 2112100221059. The next prime is 2112100221163. The reversal of 2112100221100 is 11220012112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10560501006 + ... + 10560501205.

Almost surely, 22112100221100 is an apocalyptic number.

2112100221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112100221100 is an abundant number, since it is smaller than the sum of its proper divisors (2471157258904).

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

2112100221100 is a wasteful number, since it uses less digits than its factorization.

2112100221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21121002225 (or 21121002218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2112100221100 its reverse (11220012112), we get a palindrome (2123320233212).

The spelling of 2112100221100 in words is "two trillion, one hundred twelve billion, one hundred million, two hundred twenty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 21121002211 42242004422 84484008844 105605011055 211210022110 422420044220 528025055275 1056050110550 2112100221100