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2221302231211 = 7957133315421
BaseRepresentation
bin100000010100101111111…
…011100011000010101011
321212100120101001000002211
4200110233323203002223
5242343211332344321
64420241355505551
7316324640301310
oct40245773430253
97770511030084
102221302231211
1178705a222648
122ba6057582b7
13131610c9788b
1479723b98d07
153cbab69e0e1
hex2052fee30ab

2221302231211 has 8 divisors (see below), whose sum is σ = 2538658410464. Its totient is φ = 1903952874240.

The previous prime is 2221302231199. The next prime is 2221302231257. The reversal of 2221302231211 is 1121322031222.

2221302231211 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 2221302231211 - 25 = 2221302231179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221302231271) 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, 987720 + ... + 2327701.

It is an arithmetic number, because the mean of its divisors is an integer number (317332301308).

Almost surely, 22221302231211 is an apocalyptic number.

2221302231211 is a deficient number, since it is larger than the sum of its proper divisors (317356179253).

2221302231211 is an equidigital number, since it uses as much as digits as its factorization.

2221302231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411141.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2221302231211 its reverse (1121322031222), we get a palindrome (3342624262433).

The spelling of 2221302231211 in words is "two trillion, two hundred twenty-one billion, three hundred two million, two hundred thirty-one thousand, two hundred eleven".

Divisors: 1 7 95713 669991 3315421 23207947 317328890173 2221302231211