120002101100221 has 2 divisors, whose sum is σ = 120002101100222. Its totient is φ = 120002101100220.

The previous prime is 120002101100207. The next prime is 120002101100249. The reversal of 120002101100221 is 122001101200021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119922429828100 + 79671272121 = 10950910^2 + 282261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120002101100221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120002101100251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60001050550110 + 60001050550111.

It is an arithmetic number, because the mean of its divisors is an integer number (60001050550111).

Almost surely, 2^{120002101100221} is an apocalyptic number.

It is an amenable number.

120002101100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120002101100221 is an equidigital number, since it uses as much as digits as its factorization.

120002101100221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120002101100221 its reverse (122001101200021), we get a palindrome (242003202300242).

The spelling of 120002101100221 in words is "one hundred twenty trillion, two billion, one hundred one million, one hundred thousand, two hundred twenty-one".