22224331240 has 16 divisors (see below), whose sum is σ = 50004745380. Its totient is φ = 8889732480.

The previous prime is 22224331231. The next prime is 22224331267. The reversal of 22224331240 is 4213342222.

It can be written as a sum of positive squares in 2 ways, for example, as 22139654436 + 84676804 = 148794^2 + 9202^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277804101 + ... + 277804180.

Almost surely, 2^22224331240 is an apocalyptic number.

22224331240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22224331240 is an abundant number, since it is smaller than the sum of its proper divisors (27780414140).

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

22224331240 is a wasteful number, since it uses less digits than its factorization.

22224331240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555608292 (or 555608288 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22224331240 its reverse (4213342222), we get a palindrome (26437673462).

The spelling of 22224331240 in words is "twenty-two billion, two hundred twenty-four million, three hundred thirty-one thousand, two hundred forty".