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12000120221021 = 31824346961137
BaseRepresentation
bin1010111010011111111011…
…1001110010110101011101
31120111012102000021222000212
42232213332321302311131
53033102221234033041
641304440142502205
72345660110614062
oct256477671626535
946435360258025
1012000120221021
11390724a027719
121419853b94965
136907b659329a
142d6b47954c69
1515c23d76b8eb
hexae9fee72d5d

12000120221021 has 8 divisors (see below), whose sum is σ = 12388723893504. Its totient is φ = 11611610487360.

The previous prime is 12000120221003. The next prime is 12000120221041. The reversal of 12000120221021 is 12012202100021.

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 12000120221021 - 218 = 12000119958877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000120220987 and 12000120221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000120221041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23225036 + ... + 23736101.

It is an arithmetic number, because the mean of its divisors is an integer number (1548590486688).

Almost surely, 212000120221021 is an apocalyptic number.

It is an amenable number.

12000120221021 is a deficient number, since it is larger than the sum of its proper divisors (388603672483).

12000120221021 is an equidigital number, since it uses as much as digits as its factorization.

12000120221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46969411.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12000120221021 its reverse (12012202100021), we get a palindrome (24012322321042).

The spelling of 12000120221021 in words is "twelve trillion, one hundred twenty million, two hundred twenty-one thousand, twenty-one".

Divisors: 1 31 8243 255533 46961137 1455795247 387100652291 12000120221021