11122122320 has 40 divisors (see below), whose sum is σ = 26213180136. Its totient is φ = 4387903488.

The previous prime is 11122122317. The next prime is 11122122329. The reversal of 11122122320 is 2322122111.

11122122320 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 23078416 + 11099043904 = 4804^2 + 105352^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122122329) by changing a digit.

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, 946397 + ... + 958076.

Almost surely, 2^11122122320 is an apocalyptic number.

11122122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122122320 is an abundant number, since it is smaller than the sum of its proper divisors (15091057816).

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

11122122320 is a wasteful number, since it uses less digits than its factorization.

11122122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904559 (or 1904553 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11122122320 its reverse (2322122111), we get a palindrome (13444244431).

The spelling of 11122122320 in words is "eleven billion, one hundred twenty-two million, one hundred twenty-two thousand, three hundred twenty".