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12120010121010 = 23511158233232109
BaseRepresentation
bin1011000001011110100011…
…1001011101111100110010
31120220122212100021220201010
42300113220321131330302
53042033240042333020
641435504503251350
72360433102140151
oct260275071357462
946818770256633
1012120010121010
113953081821aa0
121438b32a49b56
1369bbb1a0b8cc
142dc87c3db598
15160408c24de0
hexb05e8e5df32

12120010121010 has 64 divisors (see below), whose sum is σ = 31732727391360. Its totient is φ = 2938153044480.

The previous prime is 12120010120997. The next prime is 12120010121017. The reversal of 12120010121010 is 1012101002121.

It is not an unprimeable number, because it can be changed into a prime (12120010121017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52100836 + ... + 52332944.

It is an arithmetic number, because the mean of its divisors is an integer number (495823865490).

Almost surely, 212120010121010 is an apocalyptic number.

12120010121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120010121010 is an abundant number, since it is smaller than the sum of its proper divisors (19612717270350).

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

12120010121010 is a wasteful number, since it uses less digits than its factorization.

12120010121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390363.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12120010121010 its reverse (1012101002121), we get a palindrome (13132111123131).

The spelling of 12120010121010 in words is "twelve trillion, one hundred twenty billion, ten million, one hundred twenty-one thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 158233 232109 316466 464218 474699 696327 791165 949398 1160545 1392654 1582330 1740563 2321090 2373495 2553199 3481126 3481635 4746990 5106398 5221689 6963270 7659597 8702815 10443378 12765995 15319194 17405630 25531990 26108445 38297985 52216890 76595970 36727303397 73454606794 110181910191 183636516985 220363820382 367273033970 404000337367 550909550955 808000674734 1101819101910 1212001012101 2020001686835 2424002024202 4040003373670 6060005060505 12120010121010