11201200212121 has 2 divisors, whose sum is σ = 11201200212122. Its totient is φ = 11201200212120.

The previous prime is 11201200212113. The next prime is 11201200212157. The reversal of 11201200212121 is 12121200210211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7991957270025 + 3209242942096 = 2827005^2 + 1791436^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201200212121 - 2³ = 11201200212113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11201200212095 and 11201200212104.

It is not a weakly prime, because it can be changed into another prime (11201200212101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600600106060 + 5600600106061.

It is an arithmetic number, because the mean of its divisors is an integer number (5600600106061).

Almost surely, 2^{11201200212121} is an apocalyptic number.

It is an amenable number.

11201200212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201200212121 is an equidigital number, since it uses as much as digits as its factorization.

11201200212121 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 16.

Adding to 11201200212121 its reverse (12121200210211), we get a palindrome (23322400422332).

The spelling of 11201200212121 in words is "eleven trillion, two hundred one billion, two hundred million, two hundred twelve thousand, one hundred twenty-one".