11122505 has 32 divisors (see below), whose sum is σ = 15240960. Its totient is φ = 7741440.

The previous prime is 11122493. The next prime is 11122511. The reversal of 11122505 is 50522111.

It is a de Polignac number, because none of the positive numbers 2^k-11122505 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 114617 + ... + 114713.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^11122505 is an apocalyptic number.

It is an amenable number.

11122505 is a deficient number, since it is larger than the sum of its proper divisors (4118455).

11122505 is a wasteful number, since it uses less digits than its factorization.

11122505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 11122505 is about 3335.0419787463. The cubic root of 11122505 is about 223.2205650835.

Adding to 11122505 its reverse (50522111), we get a palindrome (61644616).

The spelling of 11122505 in words is "eleven million, one hundred twenty-two thousand, five hundred five".