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12201112120 = 235448368041
BaseRepresentation
bin10110101110011111…
…00011001000111000
31011111022112201022111
423113033203020320
5144441441041440
65334412102104
7611232512311
oct132717431070
934438481274
1012201112120
1151a123413a
122446164934
1311c5a1b092
1483a60d608
154b62494ea
hex2d73e3238

12201112120 has 32 divisors (see below), whose sum is σ = 27459029520. Its totient is φ = 4879284480.

The previous prime is 12201112111. The next prime is 12201112129. The reversal of 12201112120 is 2121110221.

It is an interprime number because it is at equal distance from previous prime (12201112111) and next prime (12201112129).

It is a self number, because there is not a number n which added to its sum of digits gives 12201112120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201112129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145300 + ... + 213340.

Almost surely, 212201112120 is an apocalyptic number.

12201112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201112120 is an abundant number, since it is smaller than the sum of its proper divisors (15257917400).

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

12201112120 is a wasteful number, since it uses less digits than its factorization.

12201112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72535 (or 72531 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12201112120 its reverse (2121110221), we get a palindrome (14322222341).

The spelling of 12201112120 in words is "twelve billion, two hundred one million, one hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 4483 8966 17932 22415 35864 44830 68041 89660 136082 179320 272164 340205 544328 680410 1360820 2721640 305027803 610055606 1220111212 1525139015 2440222424 3050278030 6100556060 12201112120