210011211222101 has 2 divisors, whose sum is σ = 210011211222102. Its totient is φ = 210011211222100.

The previous prime is 210011211222079. The next prime is 210011211222121. The reversal of 210011211222101 is 101222112110012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168776447977201 + 41234763244900 = 12991399^2 + 6421430^2 .

It is a cyclic number.

It is not a de Polignac number, because 210011211222101 - 2⁶ = 210011211222037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210011211222101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210011211222121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005605611050 + 105005605611051.

It is an arithmetic number, because the mean of its divisors is an integer number (105005605611051).

Almost surely, 2^{210011211222101} is an apocalyptic number.

It is an amenable number.

210011211222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

210011211222101 is an equidigital number, since it uses as much as digits as its factorization.

210011211222101 is an evil number, because the sum of its binary digits is even.

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

Adding to 210011211222101 its reverse (101222112110012), we get a palindrome (311233323332113).

The spelling of 210011211222101 in words is "two hundred ten trillion, eleven billion, two hundred eleven million, two hundred twenty-two thousand, one hundred one".