11212199 has 4 divisors (see below), whose sum is σ = 11311536. Its totient is φ = 11112864.

The previous prime is 11212171. The next prime is 11212219. The reversal of 11212199 is 99121211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11212199 - 2²⁰ = 10163623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49499 + ... + 49724.

It is an arithmetic number, because the mean of its divisors is an integer number (2827884).

Almost surely, 2^11212199 is an apocalyptic number.

11212199 is a deficient number, since it is larger than the sum of its proper divisors (99337).

11212199 is an equidigital number, since it uses as much as digits as its factorization.

11212199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99336.

The product of its digits is 324, while the sum is 26.

The square root of 11212199 is about 3348.4621843467. The cubic root of 11212199 is about 223.8189904085.

It can be divided in two parts, 11212 and 199, that added together give a palindrome (11411).

The spelling of 11212199 in words is "eleven million, two hundred twelve thousand, one hundred ninety-nine".