120342224521 has 2 divisors, whose sum is σ = 120342224522. Its totient is φ = 120342224520.

The previous prime is 120342224459. The next prime is 120342224543. The reversal of 120342224521 is 125422243021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68751462025 + 51590762496 = 262205^2 + 227136^2 .

It is a cyclic number.

It is not a de Polignac number, because 120342224521 - 2⁷ = 120342224393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120342224521.

It is not a weakly prime, because it can be changed into another prime (120342224221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60171112260 + 60171112261.

It is an arithmetic number, because the mean of its divisors is an integer number (60171112261).

Almost surely, 2^120342224521 is an apocalyptic number.

It is an amenable number.

120342224521 is a deficient number, since it is larger than the sum of its proper divisors (1).

120342224521 is an equidigital number, since it uses as much as digits as its factorization.

120342224521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 120342224521 its reverse (125422243021), we get a palindrome (245764467542).

The spelling of 120342224521 in words is "one hundred twenty billion, three hundred forty-two million, two hundred twenty-four thousand, five hundred twenty-one".