11101121200121 has 2 divisors, whose sum is σ = 11101121200122. Its totient is φ = 11101121200120.

The previous prime is 11101121200079. The next prime is 11101121200181. The reversal of 11101121200121 is 12100212110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10552135044025 + 548986156096 = 3248405^2 + 740936^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101121200121 - 2²² = 11101117005817 is a prime.

It is a super-2 number, since 2×11101121200121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101121200096 and 11101121200105.

It is not a weakly prime, because it can be changed into another prime (11101121200181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550560600060 + 5550560600061.

It is an arithmetic number, because the mean of its divisors is an integer number (5550560600061).

Almost surely, 2^{11101121200121} is an apocalyptic number.

It is an amenable number.

11101121200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101121200121 is an equidigital number, since it uses as much as digits as its factorization.

11101121200121 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 14.

Adding to 11101121200121 its reverse (12100212110111), we get a palindrome (23201333310232).

The spelling of 11101121200121 in words is "eleven trillion, one hundred one billion, one hundred twenty-one million, two hundred thousand, one hundred twenty-one".