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20100211022012 = 221117109124630559
BaseRepresentation
bin1001001000111111100011…
…11100000001100010111100
32122011120011021011212200112
410210133301330001202330
510113310213010201022
6110425524240045152
74143122652451622
oct444376174014274
978146137155615
1020100211022012
11644a4a71240a0
1223076800037b8
13b2a598739574
144d6bd932d512
1524ccbc8a58e2
hex1247f1f018bc

20100211022012 has 48 divisors (see below), whose sum is σ = 40667616138240. Its totient is φ = 8591138630400.

The previous prime is 20100211022011. The next prime is 20100211022069. The reversal of 20100211022012 is 21022011200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100211022011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11499212 + ... + 13131347.

It is an arithmetic number, because the mean of its divisors is an integer number (847242002880).

Almost surely, 220100211022012 is an apocalyptic number.

20100211022012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20100211022012 is an abundant number, since it is smaller than the sum of its proper divisors (20567405116228).

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

20100211022012 is a wasteful number, since it uses less digits than its factorization.

20100211022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24631682 (or 24631680 counting only the distinct ones).

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

Adding to 20100211022012 its reverse (21022011200102), we get a palindrome (41122222222114).

The spelling of 20100211022012 in words is "twenty trillion, one hundred billion, two hundred eleven million, twenty-two thousand, twelve".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 1091 2182 4364 12001 18547 24002 37094 48004 74188 204017 408034 816068 24630559 49261118 98522236 270936149 418719503 541872298 837439006 1083744596 1674878012 4605914533 9211829066 18423658132 26871939869 53743879738 107487759476 295591338559 456822977773 591182677118 913645955546 1182365354236 1827291911092 5025052755503 10050105511006 20100211022012