11109212 has 6 divisors (see below), whose sum is σ = 19441128. Its totient is φ = 5554604.

The previous prime is 11109187. The next prime is 11109223. The reversal of 11109212 is 21290111.

It is a congruent number.

It is an unprimeable number.

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, 1388648 + ... + 1388655.

It is an arithmetic number, because the mean of its divisors is an integer number (3240188).

Almost surely, 2^11109212 is an apocalyptic number.

It is an amenable number.

11109212 is a deficient number, since it is larger than the sum of its proper divisors (8331916).

11109212 is a wasteful number, since it uses less digits than its factorization.

11109212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777307 (or 2777305 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 11109212 is about 3333.0484544933. The cubic root of 11109212 is about 223.1316026941.

Adding to 11109212 its reverse (21290111), we get a palindrome (32399323).

The spelling of 11109212 in words is "eleven million, one hundred nine thousand, two hundred twelve".