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12200200221 = 31135357649
BaseRepresentation
bin10110101110011000…
…00100100000011101
31011111020211101102110
423113030010200131
5144441222401341
65334340344233
7611221663566
oct132714044035
934436741373
1012200200221
1151a0771000
1224459a5079
1311c578bcb1
1483a45316d
154b6119216
hex2d730481d

12200200221 has 32 divisors (see below), whose sum is σ = 18230313600. Its totient is φ = 7254424320.

The previous prime is 12200200183. The next prime is 12200200223.

12200200221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12200200221 - 29 = 12200199709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12200200197 and 12200200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200200223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182805 + ... + 240453.

It is an arithmetic number, because the mean of its divisors is an integer number (569697300).

Almost surely, 212200200221 is an apocalyptic number.

12200200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12200200221 is a deficient number, since it is larger than the sum of its proper divisors (6030113379).

12200200221 is an equidigital number, since it uses as much as digits as its factorization.

12200200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57738 (or 57716 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The spelling of 12200200221 in words is "twelve billion, two hundred million, two hundred thousand, two hundred twenty-one".

Divisors: 1 3 11 33 53 121 159 363 583 1331 1749 3993 6413 19239 57649 70543 172947 211629 634139 1902417 3055397 6975529 9166191 20926587 33609367 76730819 100828101 230192457 369703037 1109109111 4066733407 12200200221