129221domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes which are sums of two or more distinct 4th powers of primes.at n=11A193411Lesser of twin primes for which phi(p-1) < phi(p+1).at n=28A286715Lesser of twin self primes, i.e., smaller member of the pair of self primes differing by 2.at n=12A380713Prime numbersat n=12095