120201211601 has 2 divisors, whose sum is σ = 120201211602. Its totient is φ = 120201211600.

The previous prime is 120201211553. The next prime is 120201211717. The reversal of 120201211601 is 106112102021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97294086400 + 22907125201 = 311920^2 + 151351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120201211601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120201211601.

It is not a weakly prime, because it can be changed into another prime (120201211901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60100605800 + 60100605801.

It is an arithmetic number, because the mean of its divisors is an integer number (60100605801).

Almost surely, 2^120201211601 is an apocalyptic number.

It is an amenable number.

120201211601 is a deficient number, since it is larger than the sum of its proper divisors (1).

120201211601 is an equidigital number, since it uses as much as digits as its factorization.

120201211601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120201211601 its reverse (106112102021), we get a palindrome (226313313622).

The spelling of 120201211601 in words is "one hundred twenty billion, two hundred one million, two hundred eleven thousand, six hundred one".