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12210221021201 = 71991387596911
BaseRepresentation
bin1011000110101110100111…
…1000101111100000010001
31121020021201022000110111122
42301223221320233200101
53100023013040134301
641545144220052025
72400105442140110
oct261535170574021
947207638013448
1012210221021201
1139883644a0565
12145250a394015
136a755a4336a8
14302d99317c77
1516293886081b
hexb1ae9e2f811

12210221021201 has 8 divisors (see below), whose sum is σ = 13955239244544. Its totient is φ = 10465378031520.

The previous prime is 12210221021147. The next prime is 12210221021311. The reversal of 12210221021201 is 10212012201221.

12210221021201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12210221021201 - 210 = 12210221020177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12210221021201.

It is not an unprimeable number, because it can be changed into a prime (12210221021101) 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, 43659065 + ... + 43937846.

It is an arithmetic number, because the mean of its divisors is an integer number (1744404905568).

Almost surely, 212210221021201 is an apocalyptic number.

It is an amenable number.

12210221021201 is a deficient number, since it is larger than the sum of its proper divisors (1745018223343).

12210221021201 is an equidigital number, since it uses as much as digits as its factorization.

12210221021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87616831.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12210221021201 its reverse (10212012201221), we get a palindrome (22422233222422).

The spelling of 12210221021201 in words is "twelve trillion, two hundred ten billion, two hundred twenty-one million, twenty-one thousand, two hundred one".

Divisors: 1 7 19913 139391 87596911 613178377 1744317288743 12210221021201