11122222120 has 32 divisors (see below), whose sum is σ = 26497060200. Its totient is φ = 4187189248.

The previous prime is 11122222099. The next prime is 11122222157. The reversal of 11122222120 is 2122222111.

It is a happy number.

11122222120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7852440996 + 3269781124 = 88614^2 + 57182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11122222094 and 11122222103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8177425 + ... + 8178784.

Almost surely, 2^11122222120 is an apocalyptic number.

11122222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122222120 is an abundant number, since it is smaller than the sum of its proper divisors (15374838080).

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

11122222120 is a wasteful number, since it uses less digits than its factorization.

11122222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16356237 (or 16356233 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11122222120 its reverse (2122222111), we get a palindrome (13244444231).

Subtracting from 11122222120 its reverse (2122222111), we obtain a palindrome (9000000009).

The spelling of 11122222120 in words is "eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty".