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12200110221 = 3131049298211
BaseRepresentation
bin10110101110010111…
…01110100010001101
31011111020122210222010
423113023232202031
5144441212011341
65334334411433
7611221140315
oct132713564215
934436583863
1012200110221
1151a070a422
122445960b79
1311c575a040
1483a42c445
154b60ec716
hex2d72ee88d

12200110221 has 16 divisors (see below), whose sum is σ = 17534865600. Its totient is φ = 7500577920.

The previous prime is 12200110217. The next prime is 12200110229. The reversal of 12200110221 is 12201100221.

It is not a de Polignac number, because 12200110221 - 22 = 12200110217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12200110197 and 12200110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200110229) 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, 108195 + ... + 190016.

It is an arithmetic number, because the mean of its divisors is an integer number (1095929100).

Almost surely, 212200110221 is an apocalyptic number.

It is an amenable number.

12200110221 is a deficient number, since it is larger than the sum of its proper divisors (5334755379).

12200110221 is a wasteful number, since it uses less digits than its factorization.

12200110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299276.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12200110221 its reverse (12201100221), we get a palindrome (24401210442).

The spelling of 12200110221 in words is "twelve billion, two hundred million, one hundred ten thousand, two hundred twenty-one".

Divisors: 1 3 13 39 1049 3147 13637 40911 298211 894633 3876743 11630229 312823339 938470017 4066703407 12200110221