201221011122301 has 2 divisors, whose sum is σ = 201221011122302. Its totient is φ = 201221011122300.

The previous prime is 201221011122251. The next prime is 201221011122317. The reversal of 201221011122301 is 103221110122102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173246114965401 + 27974896156900 = 13162299^2 + 5289130^2 .

It is a cyclic number.

It is not a de Polignac number, because 201221011122301 - 2⁴⁷ = 60483522766973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201221011122371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610505561150 + 100610505561151.

It is an arithmetic number, because the mean of its divisors is an integer number (100610505561151).

Almost surely, 2^{201221011122301} is an apocalyptic number.

It is an amenable number.

201221011122301 is a deficient number, since it is larger than the sum of its proper divisors (1).

201221011122301 is an equidigital number, since it uses as much as digits as its factorization.

201221011122301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201221011122301 its reverse (103221110122102), we get a palindrome (304442121244403).

The spelling of 201221011122301 in words is "two hundred one trillion, two hundred twenty-one billion, eleven million, one hundred twenty-two thousand, three hundred one".