120212122221017 has 2 divisors, whose sum is σ = 120212122221018. Its totient is φ = 120212122221016.

The previous prime is 120212122221011. The next prime is 120212122221031. The reversal of 120212122221017 is 710122221212021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115069472977936 + 5142649243081 = 10727044^2 + 2267741^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212122221017 - 2⁴ = 120212122221001 is a prime.

It is not a weakly prime, because it can be changed into another prime (120212122221011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106061110508 + 60106061110509.

It is an arithmetic number, because the mean of its divisors is an integer number (60106061110509).

Almost surely, 2^{120212122221017} is an apocalyptic number.

It is an amenable number.

120212122221017 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212122221017 is an equidigital number, since it uses as much as digits as its factorization.

120212122221017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 120212122221017 its reverse (710122221212021), we get a palindrome (830334343433038).

The spelling of 120212122221017 in words is "one hundred twenty trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, seventeen".