120221220611 has 2 divisors, whose sum is σ = 120221220612. Its totient is φ = 120221220610.

The previous prime is 120221220607. The next prime is 120221220643. The reversal of 120221220611 is 116022122021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120221220611 - 2² = 120221220607 is a prime.

It is not a weakly prime, because it can be changed into another prime (120221220671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110610305 + 60110610306.

It is an arithmetic number, because the mean of its divisors is an integer number (60110610306).

Almost surely, 2^120221220611 is an apocalyptic number.

120221220611 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221220611 is an equidigital number, since it uses as much as digits as its factorization.

120221220611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 120221220611 its reverse (116022122021), we get a palindrome (236243342632).

The spelling of 120221220611 in words is "one hundred twenty billion, two hundred twenty-one million, two hundred twenty thousand, six hundred eleven".