210001121201 has 2 divisors, whose sum is σ = 210001121202. Its totient is φ = 210001121200.

The previous prime is 210001121189. The next prime is 210001121203. The reversal of 210001121201 is 102121100012.

210001121201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180897102400 + 29104018801 = 425320^2 + 170599^2 .

It is a cyclic number.

It is not a de Polignac number, because 210001121201 - 2⁶ = 210001121137 is a prime.

Together with 210001121203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (210001121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000560600 + 105000560601.

It is an arithmetic number, because the mean of its divisors is an integer number (105000560601).

Almost surely, 2^210001121201 is an apocalyptic number.

It is an amenable number.

210001121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

210001121201 is an equidigital number, since it uses as much as digits as its factorization.

210001121201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210001121201 its reverse (102121100012), we get a palindrome (312122221213).

It can be divided in two parts, 2100011 and 21201, that added together give a palindrome (2121212).

The spelling of 210001121201 in words is "two hundred ten billion, one million, one hundred twenty-one thousand, two hundred one".