120220121017 has 2 divisors, whose sum is σ = 120220121018. Its totient is φ = 120220121016.

The previous prime is 120220121003. The next prime is 120220121041. The reversal of 120220121017 is 710121022021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112423407616 + 7796713401 = 335296^2 + 88299^2 .

It is a cyclic number.

It is not a de Polignac number, because 120220121017 - 2¹⁹ = 120219596729 is a prime.

It is a super-2 number, since 2×120220121017² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120220120985 and 120220121003.

It is not a weakly prime, because it can be changed into another prime (120220121117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110060508 + 60110060509.

It is an arithmetic number, because the mean of its divisors is an integer number (60110060509).

Almost surely, 2^120220121017 is an apocalyptic number.

It is an amenable number.

120220121017 is a deficient number, since it is larger than the sum of its proper divisors (1).

120220121017 is an equidigital number, since it uses as much as digits as its factorization.

120220121017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 120220121017 its reverse (710121022021), we get a palindrome (830341143038).

The spelling of 120220121017 in words is "one hundred twenty billion, two hundred twenty million, one hundred twenty-one thousand, seventeen".