102016121 has 2 divisors, whose sum is σ = 102016122.
Its totient is φ = 102016120.
The previous prime is 102016087. The next prime is 102016147. The reversal of 102016121 is 121610201.
Adding to 102016121 its reverse (121610201), we get a palindrome (223626322).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 89491600 + 12524521 = 9460^2 + 3539^2
It is a cyclic number.
It is not a de Polignac number, because 102016121 - 222 = 97821817 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 102016096 and 102016105.
It is not a weakly prime, because it can be changed into another prime (102016151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51008060 + 51008061.
It is an arithmetic number, because the mean of its divisors is an integer number (51008061).
Almost surely, 2102016121 is an apocalyptic number.
It is an amenable number.
102016121 is a deficient number, since it is larger than the sum of its proper divisors (1).
102016121 is an equidigital number, since it uses as much as digits as its factorization.
102016121 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 24, while the sum is 14.
The square root of 102016121 is about 10100.3030152565.
The cubic root of 102016121 is about 467.2574867713.
The spelling of 102016121 in words is "one hundred two million, sixteen thousand, one hundred twenty-one".