210120112201211 has 2 divisors, whose sum is σ = 210120112201212. Its totient is φ = 210120112201210.

The previous prime is 210120112201187. The next prime is 210120112201243. The reversal of 210120112201211 is 112102211021012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210120112201211 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210120112201211.

It is not a weakly prime, because it can be changed into another prime (210120112251211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060056100605 + 105060056100606.

It is an arithmetic number, because the mean of its divisors is an integer number (105060056100606).

Almost surely, 2^{210120112201211} is an apocalyptic number.

210120112201211 is a deficient number, since it is larger than the sum of its proper divisors (1).

210120112201211 is an equidigital number, since it uses as much as digits as its factorization.

210120112201211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210120112201211 its reverse (112102211021012), we get a palindrome (322222323222223).

The spelling of 210120112201211 in words is "two hundred ten trillion, one hundred twenty billion, one hundred twelve million, two hundred one thousand, two hundred eleven".