22011124440 has 64 divisors (see below), whose sum is σ = 66159820800. Its totient is φ = 5858393472.

The previous prime is 22011124433. The next prime is 22011124441. The reversal of 22011124440 is 4442111022.

It is a super-2 number, since 2×22011124440² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011124441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112600 + ... + 238119.

It is an arithmetic number, because the mean of its divisors is an integer number (1033747200).

Almost surely, 2^22011124440 is an apocalyptic number.

22011124440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011124440 is an abundant number, since it is smaller than the sum of its proper divisors (44148696360).

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

22011124440 is a wasteful number, since it uses less digits than its factorization.

22011124440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351256 (or 351252 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22011124440 its reverse (4442111022), we get a palindrome (26453235462).

The spelling of 22011124440 in words is "twenty-two billion, eleven million, one hundred twenty-four thousand, four hundred forty".