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12122222021227 is a prime number
BaseRepresentation
bin1011000001100110110010…
…1111001100101001101011
31120220212120111101002101101
42300121230233030221223
53042102302314134402
641440512200102231
72360541651031633
oct260315457145153
946825514332341
1012122222021227
11395400733a3aa
12143944b764977
1369c1750489c6
142dca0c0956c3
151604d7ee2b87
hexb066cbcca6b

12122222021227 has 2 divisors, whose sum is σ = 12122222021228. Its totient is φ = 12122222021226.

The previous prime is 12122222021201. The next prime is 12122222021281. The reversal of 12122222021227 is 72212022222121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12122222021227 - 211 = 12122222019179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122222021195 and 12122222021204.

It is not a weakly prime, because it can be changed into another prime (12122222022227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061111010613 + 6061111010614.

It is an arithmetic number, because the mean of its divisors is an integer number (6061111010614).

Almost surely, 212122222021227 is an apocalyptic number.

12122222021227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122222021227 is an equidigital number, since it uses as much as digits as its factorization.

12122222021227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 12122222021227 its reverse (72212022222121), we get a palindrome (84334244243348).

The spelling of 12122222021227 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-seven".