11201211212101 has 2 divisors, whose sum is σ = 11201211212102. Its totient is φ = 11201211212100.

The previous prime is 11201211212057. The next prime is 11201211212119. The reversal of 11201211212101 is 10121211210211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7149340130625 + 4051871081476 = 2673825^2 + 2012926^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201211212101 - 2⁷ = 11201211211973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11201211212801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600605606050 + 5600605606051.

It is an arithmetic number, because the mean of its divisors is an integer number (5600605606051).

Almost surely, 2^{11201211212101} is an apocalyptic number.

It is an amenable number.

11201211212101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201211212101 is an equidigital number, since it uses as much as digits as its factorization.

11201211212101 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 16.

Adding to 11201211212101 its reverse (10121211210211), we get a palindrome (21322422422312).

The spelling of 11201211212101 in words is "eleven trillion, two hundred one billion, two hundred eleven million, two hundred twelve thousand, one hundred one".