22031440024 has 16 divisors (see below), whose sum is σ = 45064309320. Its totient is φ = 10014290880.

The previous prime is 22031440019. The next prime is 22031440033. The reversal of 22031440024 is 42004413022.

It is a happy number.

It is a super-2 number, since 2×22031440024² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 22031439977 and 22031440004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125178549 + ... + 125178724.

Almost surely, 2^22031440024 is an apocalyptic number.

It is an amenable number.

22031440024 is an abundant number, since it is smaller than the sum of its proper divisors (23032869296).

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

22031440024 is a wasteful number, since it uses less digits than its factorization.

22031440024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250357290 (or 250357286 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22031440024 its reverse (42004413022), we get a palindrome (64035853046).

The spelling of 22031440024 in words is "twenty-two billion, thirty-one million, four hundred forty thousand, twenty-four".