22004244240240 has 80 divisors (see below), whose sum is σ = 68238246758400. Its totient is φ = 5865640217856.

The previous prime is 22004244240229. The next prime is 22004244240257. The reversal of 22004244240240 is 4204244240022.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22004244240198 and 22004244240207.

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, 16207380 + ... + 17512499.

It is an arithmetic number, because the mean of its divisors is an integer number (852978084480).

Almost surely, 2^{22004244240240} is an apocalyptic number.

22004244240240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22004244240240 is an abundant number, since it is smaller than the sum of its proper divisors (46234002518160).

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

22004244240240 is a wasteful number, since it uses less digits than its factorization.

22004244240240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33722614 (or 33722608 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 22004244240240 its reverse (4204244240022), we get a palindrome (26208488480262).

The spelling of 22004244240240 in words is "twenty-two trillion, four billion, two hundred forty-four million, two hundred forty thousand, two hundred forty".