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1222131342101 is a prime number
BaseRepresentation
bin10001110010001100101…
…101000101101100010101
311022211112102201202221112
4101302030231011230111
5130010411110421401
62333234524024405
7154203361002215
oct21621455055425
94284472652845
101222131342101
11431337310a6a
12178a35392105
138b3287052c7
14432198d8245
1521bccb103bb
hex11c8cb45b15

1222131342101 has 2 divisors, whose sum is σ = 1222131342102. Its totient is φ = 1222131342100.

The previous prime is 1222131342073. The next prime is 1222131342121. The reversal of 1222131342101 is 1012431312221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 790481028100 + 431650314001 = 889090^2 + 657001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222131342101 - 238 = 947253435157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222131342121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611065671050 + 611065671051.

It is an arithmetic number, because the mean of its divisors is an integer number (611065671051).

Almost surely, 21222131342101 is an apocalyptic number.

It is an amenable number.

1222131342101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222131342101 is an equidigital number, since it uses as much as digits as its factorization.

1222131342101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1222131342101 its reverse (1012431312221), we get a palindrome (2234562654322).

The spelling of 1222131342101 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-one million, three hundred forty-two thousand, one hundred one".