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12022120012220 = 2251900931622179
BaseRepresentation
bin1010111011110001111000…
…1100010101100110111100
31120120022012012210011002022
42232330132030111212330
53033432300210342340
641322515150415312
72350366225013033
oct256743614254674
946508165704068
1012022120012220
11391560937043a
121421b73801538
136928b1371206
142d7c3367d71a
1515cac9d583b5
hexaef1e3159bc

12022120012220 has 24 divisors (see below), whose sum is σ = 25247780955600. Its totient is φ = 4808594875392.

The previous prime is 12022120012213. The next prime is 12022120012237. The reversal of 12022120012220 is 2221002122021.

It is a happy number.

It is a super-2 number, since 2×120221200122202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15430910 + ... + 16191269.

It is an arithmetic number, because the mean of its divisors is an integer number (1051990873150).

Almost surely, 212022120012220 is an apocalyptic number.

12022120012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022120012220 is an abundant number, since it is smaller than the sum of its proper divisors (13225660943380).

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

12022120012220 is a wasteful number, since it uses less digits than its factorization.

12022120012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31641197 (or 31641195 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12022120012220 its reverse (2221002122021), we get a palindrome (14243122134241).

The spelling of 12022120012220 in words is "twelve trillion, twenty-two billion, one hundred twenty million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 19009 38018 76036 95045 190090 380180 31622179 63244358 126488716 158110895 316221790 632443580 601106000611 1202212001222 2404424002444 3005530003055 6011060006110 12022120012220