1122124111 has 4 divisors (see below), whose sum is σ = 1129008472. Its totient is φ = 1115239752.

The previous prime is 1122124103. The next prime is 1122124139. The reversal of 1122124111 is 1114212211.

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 1122124111 - 2³ = 1122124103 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 (1122124511) 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, 3441936 + ... + 3442261.

It is an arithmetic number, because the mean of its divisors is an integer number (282252118).

Almost surely, 2^1122124111 is an apocalyptic number.

1122124111 is a deficient number, since it is larger than the sum of its proper divisors (6884361).

1122124111 is an equidigital number, since it uses as much as digits as its factorization.

1122124111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884360.

The product of its digits is 32, while the sum is 16.

The square root of 1122124111 is about 33498.1210070058. The cubic root of 1122124111 is about 1039.1549196937.

Adding to 1122124111 its reverse (1114212211), we get a palindrome (2236336322).

The spelling of 1122124111 in words is "one billion, one hundred twenty-two million, one hundred twenty-four thousand, one hundred eleven".