11122434440 has 64 divisors (see below), whose sum is σ = 26974609200. Its totient is φ = 4103073792.

The previous prime is 11122434403. The next prime is 11122434457. The reversal of 11122434440 is 4443422111.

It can be written as a sum of positive squares in 8 ways, for example, as 3058753636 + 8063680804 = 55306^2 + 89798^2 .

It is a super-2 number, since 2×11122434440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611396 + ... + 629324.

Almost surely, 2^11122434440 is an apocalyptic number.

11122434440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11122434440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13487304600).

11122434440 is an abundant number, since it is smaller than the sum of its proper divisors (15852174760).

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

11122434440 is a wasteful number, since it uses less digits than its factorization.

11122434440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19146 (or 19142 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 11122434440 its reverse (4443422111), we get a palindrome (15565856551).

The spelling of 11122434440 in words is "eleven billion, one hundred twenty-two million, four hundred thirty-four thousand, four hundred forty".