11122155 has 24 divisors (see below), whose sum is σ = 21031920. Its totient is φ = 5392320.

The previous prime is 11122141. The next prime is 11122171. The reversal of 11122155 is 55122111.

It is not a de Polignac number, because 11122155 - 2¹¹ = 11120107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10740 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (876330).

Almost surely, 2^11122155 is an apocalyptic number.

11122155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11122155 is a deficient number, since it is larger than the sum of its proper divisors (9909765).

11122155 is a wasteful number, since it uses less digits than its factorization.

11122155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22491 (or 22488 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 11122155 is about 3334.9895052309. The cubic root of 11122155 is about 223.2182236441.

Adding to 11122155 its reverse (55122111), we get a palindrome (66244266).

The spelling of 11122155 in words is "eleven million, one hundred twenty-two thousand, one hundred fifty-five".