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12201112230 = 2353710991993
BaseRepresentation
bin10110101110011111…
…00011001010100110
31011111022112201110120
423113033203022212
5144441441042410
65334412102410
7611232512526
oct132717431246
934438481416
1012201112230
1151a123422a
122446164a06
1311c5a1b148
1483a60d686
154b6249570
hex2d73e32a6

12201112230 has 32 divisors (see below), whose sum is σ = 30074095584. Its totient is φ = 3165693696.

The previous prime is 12201112229. The next prime is 12201112237. The reversal of 12201112230 is 3221110221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201112237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5494887 + ... + 5497106.

It is an arithmetic number, because the mean of its divisors is an integer number (939815487).

Almost surely, 212201112230 is an apocalyptic number.

12201112230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12201112230 is an abundant number, since it is smaller than the sum of its proper divisors (17872983354).

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

12201112230 is a wasteful number, since it uses less digits than its factorization.

12201112230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992040.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12201112230 its reverse (3221110221), we get a palindrome (15422222451).

The spelling of 12201112230 in words is "twelve billion, two hundred one million, one hundred twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 10991993 21983986 32975979 54959965 65951958 109919930 164879895 329759790 406703741 813407482 1220111223 2033518705 2440222446 4067037410 6100556115 12201112230