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20121130002210 = 23511291643336151
BaseRepresentation
bin1001001001100110100001…
…10011100110011100100010
32122020120011010221011202220
410210303100303212130202
510114131033240032320
6110443304114251510
74144463234035236
oct444632063463442
978216133834686
1020121130002210
116458361369586
12230b739886b96
13b2c550624a63
144d7c216b25c6
1524d5e414be40
hex124cd0ce6722

20121130002210 has 64 divisors (see below), whose sum is σ = 48337763316480. Its totient is φ = 5360407603200.

The previous prime is 20121130002187. The next prime is 20121130002251. The reversal of 20121130002210 is 1220003112102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20121130002210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556567635 + ... + 556603785.

It is an arithmetic number, because the mean of its divisors is an integer number (755277551820).

Almost surely, 220121130002210 is an apocalyptic number.

20121130002210 is an abundant number, since it is smaller than the sum of its proper divisors (28216633314270).

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

20121130002210 is a wasteful number, since it uses less digits than its factorization.

20121130002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53723.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20121130002210 its reverse (1220003112102), we get a palindrome (21341133114312).

The spelling of 20121130002210 in words is "twenty trillion, one hundred twenty-one billion, one hundred thirty million, two thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 1129 2258 3387 5645 6774 11290 16433 16935 32866 33870 36151 49299 72302 82165 98598 108453 164330 180755 216906 246495 361510 492990 542265 1084530 18552857 37105714 40814479 55658571 81628958 92764285 111317142 122443437 185528570 204072395 244886874 278292855 408144790 556585710 594069383 612217185 1188138766 1224434370 1782208149 2970346915 3564416298 5940693830 8911040745 17822081490 670704333407 1341408666814 2012113000221 3353521667035 4024226000442 6707043334070 10060565001105 20121130002210