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12202120111120 = 245616337394577
BaseRepresentation
bin1011000110010000011100…
…0010001110010000010000
31121012111210201201120222221
42301210013002032100100
53044404420222023440
641541324313310424
72366400624424342
oct261440702162020
947174721646887
1012202120111120
11398498776a955
121450a29405414
136a686901b784
1430282b4a3292
15162612580d4a
hexb190708e410

12202120111120 has 80 divisors (see below), whose sum is σ = 28839633417648. Its totient is φ = 4800064389120.

The previous prime is 12202120111091. The next prime is 12202120111127. The reversal of 12202120111120 is 2111102120221.

It can be written as a sum of positive squares in 8 ways, for example, as 5736044160016 + 6466075951104 = 2395004^2 + 2542848^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×122021201111202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12202120111094 and 12202120111103.

It is not an unprimeable number, because it can be changed into a prime (12202120111127) 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, 30727272 + ... + 31121848.

Almost surely, 212202120111120 is an apocalyptic number.

12202120111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12202120111120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14419816708824).

12202120111120 is an abundant number, since it is smaller than the sum of its proper divisors (16637513306528).

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

12202120111120 is a wasteful number, since it uses less digits than its factorization.

12202120111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400988 (or 400982 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12202120111120 its reverse (2111102120221), we get a palindrome (14313222231341).

The spelling of 12202120111120 in words is "twelve trillion, two hundred two billion, one hundred twenty million, one hundred eleven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 61 80 122 244 305 488 610 976 1220 2440 4880 6337 12674 25348 31685 50696 63370 101392 126740 253480 386557 394577 506960 773114 789154 1546228 1578308 1932785 1972885 3092456 3156616 3865570 3945770 6184912 6313232 7731140 7891540 15462280 15783080 24069197 30924560 31566160 48138394 96276788 120345985 192553576 240691970 385107152 481383940 962767880 1925535760 2500434449 5000868898 10001737796 12502172245 20003475592 25004344490 40006951184 50008688980 100017377960 152526501389 200034755920 305053002778 610106005556 762632506945 1220212011112 1525265013890 2440424022224 3050530027780 6101060055560 12202120111120