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12202124321 = 64725517393
BaseRepresentation
bin10110101110100110…
…11010010000100001
31011111101110010210102
423113103122100201
5144442220434241
65334445512145
7611244226322
oct132723322041
934441403712
1012202124321
1151a1865672
122446572655
1311c5cb3a0a
1483a7d4449
154b639939b
hex2d74da421

12202124321 has 8 divisors (see below), whose sum is σ = 12227428224. Its totient is φ = 12176841600.

The previous prime is 12202124317. The next prime is 12202124327. The reversal of 12202124321 is 12342120221.

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 12202124321 - 22 = 12202124317 is a prime.

It is a super-2 number, since 2×122021243212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202124293 and 12202124302.

It is not an unprimeable number, because it can be changed into a prime (12202124327) 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, 1646801 + ... + 1654193.

It is an arithmetic number, because the mean of its divisors is an integer number (1528428528).

Almost surely, 212202124321 is an apocalyptic number.

It is an amenable number.

12202124321 is a deficient number, since it is larger than the sum of its proper divisors (25303903).

12202124321 is an equidigital number, since it uses as much as digits as its factorization.

12202124321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10591.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12202124321 its reverse (12342120221), we get a palindrome (24544244542).

The spelling of 12202124321 in words is "twelve billion, two hundred two million, one hundred twenty-four thousand, three hundred twenty-one".

Divisors: 1 647 2551 7393 1650497 4783271 18859543 12202124321