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12022122100220 = 2251375238389361
BaseRepresentation
bin1010111011110001111001…
…0100010011010111111100
31120120022012100201020021122
42232330132110103113330
53033432301224201340
641322515303250112
72350366251530351
oct256743624232774
946508170636248
1012022122100220
11391560a567161
121421b74449938
136928b192270b
142d7c33a64628
1515caca11bdb5
hexaef1e5135fc

12022122100220 has 48 divisors (see below), whose sum is σ = 25479364887648. Its totient is φ = 4764619560960.

The previous prime is 12022122100169. The next prime is 12022122100229. The reversal of 12022122100220 is 2200122122021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022122100229) 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, 2761661 + ... + 5627700.

It is an arithmetic number, because the mean of its divisors is an integer number (530820101826).

Almost surely, 212022122100220 is an apocalyptic number.

12022122100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022122100220 is an abundant number, since it is smaller than the sum of its proper divisors (13457242787428).

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

12022122100220 is a wasteful number, since it uses less digits than its factorization.

12022122100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8390030 (or 8390028 counting only the distinct ones).

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

Adding to 12022122100220 its reverse (2200122122021), we get a palindrome (14222244222241).

The spelling of 12022122100220 in words is "twelve trillion, twenty-two billion, one hundred twenty-two million, one hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 137 274 523 548 685 1046 1370 2092 2615 2740 5230 10460 71651 143302 286604 358255 716510 1433020 8389361 16778722 33557444 41946805 83893610 167787220 1149342457 2298684914 4387635803 4597369828 5746712285 8775271606 11493424570 17550543212 21938179015 22986849140 43876358030 87752716060 601106105011 1202212210022 2404424420044 3005530525055 6011061050110 12022122100220