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12200055321 = 317239216771
BaseRepresentation
bin10110101110010111…
…00001001000011001
31011111020120000122210
423113023201020121
5144441203232241
65334333305333
7611220521256
oct132713411031
934436500583
1012200055321
1151a0682153
122445935249
1311c573b05c
1483a41642d
154b60db316
hex2d72e1219

12200055321 has 8 divisors (see below), whose sum is σ = 17223607584. Its totient is φ = 7654936640.

The previous prime is 12200055313. The next prime is 12200055337. The reversal of 12200055321 is 12355000221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12200055321 - 23 = 12200055313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12200055311) 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, 119608335 + ... + 119608436.

It is an arithmetic number, because the mean of its divisors is an integer number (2152950948).

Almost surely, 212200055321 is an apocalyptic number.

It is an amenable number.

12200055321 is a deficient number, since it is larger than the sum of its proper divisors (5023552263).

12200055321 is a wasteful number, since it uses less digits than its factorization.

12200055321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239216791.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 12200055321 its reverse (12355000221), we get a palindrome (24555055542).

The spelling of 12200055321 in words is "twelve billion, two hundred million, fifty-five thousand, three hundred twenty-one".

Divisors: 1 3 17 51 239216771 717650313 4066685107 12200055321