11202121169 has 2 divisors, whose sum is σ = 11202121170. Its totient is φ = 11202121168.

The previous prime is 11202121163. The next prime is 11202121187. The reversal of 11202121169 is 96112120211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8589582400 + 2612538769 = 92680^2 + 51113^2 .

It is an emirp because it is prime and its reverse (96112120211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11202121169 - 2²⁰ = 11201072593 is a prime.

It is a super-2 number, since 2×11202121169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11202121163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601060584 + 5601060585.

It is an arithmetic number, because the mean of its divisors is an integer number (5601060585).

Almost surely, 2^11202121169 is an apocalyptic number.

It is an amenable number.

11202121169 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202121169 is an equidigital number, since it uses as much as digits as its factorization.

11202121169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 11202121169 in words is "eleven billion, two hundred two million, one hundred twenty-one thousand, one hundred sixty-nine".