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122201102081 is a prime number
BaseRepresentation
bin111000111001111000…
…0001101011100000001
3102200102101221011220202
41301303300031130001
54000231440231311
6132045521414545
711554154141432
oct1616360153401
9380371834822
10122201102081
1147909377753
121b824a9a455
13b6a6213536
145cb37cd489
1532a333de3b
hex1c73c0d701

122201102081 has 2 divisors, whose sum is σ = 122201102082. Its totient is φ = 122201102080.

The previous prime is 122201102071. The next prime is 122201102083. The reversal of 122201102081 is 180201102221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98480481856 + 23720620225 = 313816^2 + 154015^2 .

It is a cyclic number.

It is not a de Polignac number, because 122201102081 - 226 = 122133993217 is a prime.

It is a super-2 number, since 2×1222011020812 (a number of 23 digits) contains 22 as substring.

Together with 122201102083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122201102083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100551040 + 61100551041.

It is an arithmetic number, because the mean of its divisors is an integer number (61100551041).

Almost surely, 2122201102081 is an apocalyptic number.

It is an amenable number.

122201102081 is a deficient number, since it is larger than the sum of its proper divisors (1).

122201102081 is an equidigital number, since it uses as much as digits as its factorization.

122201102081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 122201102081 in words is "one hundred twenty-two billion, two hundred one million, one hundred two thousand, eighty-one".