11211199 has 4 divisors (see below), whose sum is σ = 11241160. Its totient is φ = 11181240.

The previous prime is 11211169. The next prime is 11211203. The reversal of 11211199 is 99111211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99111211 = 107 ⋅926273.

It is a cyclic number.

It is not a de Polignac number, because 11211199 - 2⁷ = 11211071 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 (11211169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14412 + ... + 15169.

It is an arithmetic number, because the mean of its divisors is an integer number (2810290).

Almost surely, 2^11211199 is an apocalyptic number.

11211199 is a deficient number, since it is larger than the sum of its proper divisors (29961).

11211199 is an equidigital number, since it uses as much as digits as its factorization.

11211199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29960.

The product of its digits is 162, while the sum is 25.

The square root of 11211199 is about 3348.3128587395. The cubic root of 11211199 is about 223.8123361787.

It can be divided in two parts, 112 and 11199, that added together give a palindrome (11311).

The spelling of 11211199 in words is "eleven million, two hundred eleven thousand, one hundred ninety-nine".