11212169 has 2 divisors, whose sum is σ = 11212170. Its totient is φ = 11212168.

The previous prime is 11212153. The next prime is 11212171. The reversal of 11212169 is 96121211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9859600 + 1352569 = 3140^2 + 1163^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212169 - 2⁴ = 11212153 is a prime.

It is a super-2 number, since 2×11212169² = 251425467369122, which contains 22 as substring.

Together with 11212171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11211169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606084 + 5606085.

It is an arithmetic number, because the mean of its divisors is an integer number (5606085).

Almost surely, 2^11212169 is an apocalyptic number.

It is an amenable number.

11212169 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212169 is an equidigital number, since it uses as much as digits as its factorization.

11212169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 23.

The square root of 11212169 is about 3348.4577046754. The cubic root of 11212169 is about 223.8187907873.

The spelling of 11212169 in words is "eleven million, two hundred twelve thousand, one hundred sixty-nine".