22404112220440 has 16 divisors (see below), whose sum is σ = 50409252496080. Its totient is φ = 8961644888160.

The previous prime is 22404112220429. The next prime is 22404112220443. The reversal of 22404112220440 is 4402221140422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22404112220399 and 22404112220408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404112220443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280051402716 + ... + 280051402795.

It is an arithmetic number, because the mean of its divisors is an integer number (3150578281005).

Almost surely, 2^{22404112220440} is an apocalyptic number.

22404112220440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22404112220440 is an abundant number, since it is smaller than the sum of its proper divisors (28005140275640).

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

22404112220440 is a wasteful number, since it uses less digits than its factorization.

22404112220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560102805522 (or 560102805518 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 22404112220440 its reverse (4402221140422), we get a palindrome (26806333360862).

The spelling of 22404112220440 in words is "twenty-two trillion, four hundred four billion, one hundred twelve million, two hundred twenty thousand, four hundred forty".