120122021017 has 2 divisors, whose sum is σ = 120122021018. Its totient is φ = 120122021016.

The previous prime is 120122021009. The next prime is 120122021059. The reversal of 120122021017 is 710120221021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62510500441 + 57611520576 = 250021^2 + 240024^2 .

It is a cyclic number.

It is not a de Polignac number, because 120122021017 - 2³ = 120122021009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120122020985 and 120122021003.

It is not a weakly prime, because it can be changed into another prime (120122021717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60061010508 + 60061010509.

It is an arithmetic number, because the mean of its divisors is an integer number (60061010509).

Almost surely, 2^120122021017 is an apocalyptic number.

It is an amenable number.

120122021017 is a deficient number, since it is larger than the sum of its proper divisors (1).

120122021017 is an equidigital number, since it uses as much as digits as its factorization.

120122021017 is an evil number, because the sum of its binary digits is even.

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

Adding to 120122021017 its reverse (710120221021), we get a palindrome (830242242038).

The spelling of 120122021017 in words is "one hundred twenty billion, one hundred twenty-two million, twenty-one thousand, seventeen".