1111123122 has 16 divisors (see below), whose sum is σ = 2223895392. Its totient is φ = 370099520.

The previous prime is 1111123093. The next prime is 1111123133. The reversal of 1111123122 is 2213211111.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 59868 + ... + 76199.

It is an arithmetic number, because the mean of its divisors is an integer number (138993462).

Almost surely, 2^1111123122 is an apocalyptic number.

1111123122 is an abundant number, since it is smaller than the sum of its proper divisors (1112772270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111123122 is a wasteful number, since it uses less digits than its factorization.

1111123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137433.

The product of its digits is 24, while the sum is 15.

The square root of 1111123122 is about 33333.5134961798. The cubic root of 1111123122 is about 1035.7479007003.

Adding to 1111123122 its reverse (2213211111), we get a palindrome (3324334233).

The spelling of 1111123122 in words is "one billion, one hundred eleven million, one hundred twenty-three thousand, one hundred twenty-two".