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122212101220120 = 23543241729397413
BaseRepresentation
bin11011110010011010111000…
…111000010110011100011000
3121000201100210110111020122201
4123302122320320112130120
5112004310340403020440
61111531244135055544
734512350540256322
oct3362327070263430
9530640713436581
10122212101220120
1135a38952091a5a
12118596355115b4
1353267230c4992
142227150c4a612
15e1e03d16e19a
hex6f26b8e16718

122212101220120 has 64 divisors (see below), whose sum is σ = 281488470325920. Its totient is φ = 47728227047424.

The previous prime is 122212101220073. The next prime is 122212101220123. The reversal of 122212101220120 is 21022101212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212101220123) 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, 10541467 + ... + 18855946.

Almost surely, 2122212101220120 is an apocalyptic number.

122212101220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212101220120 is an abundant number, since it is smaller than the sum of its proper divisors (159276369105800).

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

122212101220120 is a wasteful number, since it uses less digits than its factorization.

122212101220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29399884 (or 29399880 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122212101220120 its reverse (21022101212221), we get a palindrome (143234202432341).

The spelling of 122212101220120 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred one million, two hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 2417 4834 9668 12085 19336 24170 48340 96680 103931 207862 415724 519655 831448 1039310 2078620 4157240 29397413 58794826 117589652 146987065 235179304 293974130 587948260 1175896520 1264088759 2528177518 5056355036 6320443795 10112710072 12640887590 25281775180 50563550360 71053547221 142107094442 284214188884 355267736105 568428377768 710535472210 1421070944420 2842141888840 3055302530503 6110605061006 12221210122012 15276512652515 24442420244024 30553025305030 61106050610060 122212101220120