22112035440 has 80 divisors (see below), whose sum is σ = 74778892416. Its totient is φ = 5360492800.

The previous prime is 22112035409. The next prime is 22112035487. The reversal of 22112035440 is 4453021122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×22112035440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22112035440.

It is a congruent number.

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, 4185246 + ... + 4190525.

Almost surely, 2^22112035440 is an apocalyptic number.

22112035440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112035440 is an abundant number, since it is smaller than the sum of its proper divisors (52666856976).

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

22112035440 is a wasteful number, since it uses less digits than its factorization.

22112035440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8375798 (or 8375792 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 22112035440 its reverse (4453021122), we get a palindrome (26565056562).

The spelling of 22112035440 in words is "twenty-two billion, one hundred twelve million, thirty-five thousand, four hundred forty".