22425220240 has 80 divisors (see below), whose sum is σ = 52611007680. Its totient is φ = 8889177600.

The previous prime is 22425220229. The next prime is 22425220267. The reversal of 22425220240 is 4202252422.

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

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, 4393690 + ... + 4398790.

It is an arithmetic number, because the mean of its divisors is an integer number (657637596).

Almost surely, 2^22425220240 is an apocalyptic number.

22425220240 is a gapful number since it is divisible by the number (20) 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 22425220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26305503840).

22425220240 is an abundant number, since it is smaller than the sum of its proper divisors (30185787440).

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

22425220240 is a wasteful number, since it uses less digits than its factorization.

22425220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600 (or 5594 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

Adding to 22425220240 its reverse (4202252422), we get a palindrome (26627472662).

The spelling of 22425220240 in words is "twenty-two billion, four hundred twenty-five million, two hundred twenty thousand, two hundred forty".