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20102012110220 = 2251996754705307
BaseRepresentation
bin1001001001000010111010…
…10010101000010110001100
32122011201210210020122020012
410210201131102220112030
510113322410100011340
6110430423055412352
74143215412450635
oct444413522502614
978151723218205
1020102012110220
116450240861347
122307aa32240b8
13b2a7c491aa31
144d6d2a60a88c
1524cd75a76565
hex12485d4a858c

20102012110220 has 48 divisors (see below), whose sum is σ = 44481980040960. Its totient is φ = 7609726885824.

The previous prime is 20102012110207. The next prime is 20102012110249. The reversal of 20102012110220 is 2201121020102.

20102012110220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 20102012110195 and 20102012110204.

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, 26985194 + ... + 27720113.

It is an arithmetic number, because the mean of its divisors is an integer number (926707917520).

Almost surely, 220102012110220 is an apocalyptic number.

20102012110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102012110220 is an abundant number, since it is smaller than the sum of its proper divisors (24379967930740).

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

20102012110220 is a wasteful number, since it uses less digits than its factorization.

20102012110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54706302 (or 54706300 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20102012110220 its reverse (2201121020102), we get a palindrome (22303133130322).

The spelling of 20102012110220 in words is "twenty trillion, one hundred two billion, twelve million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 967 1934 3868 4835 9670 18373 19340 36746 73492 91865 183730 367460 54705307 109410614 218821228 273526535 547053070 1039400833 1094106140 2078801666 4157603332 5197004165 10394008330 20788016660 52900031869 105800063738 211600127476 264500159345 529000318690 1005100605511 1058000637380 2010201211022 4020402422044 5025503027555 10051006055110 20102012110220