22224420042400 has 36 divisors (see below), whose sum is σ = 54255365430462. Its totient is φ = 8889768016640.

The previous prime is 22224420042359. The next prime is 22224420042401. The reversal of 22224420042400 is 424002442222.

It can be written as a sum of positive squares in 3 ways, for example, as 21336897779344 + 887522263056 = 4619188^2 + 942084^2 .

It is not an unprimeable number, because it can be changed into a prime (22224420042401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13890261727 + ... + 13890263326.

Almost surely, 2^{22224420042400} is an apocalyptic number.

22224420042400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22224420042400 is an abundant number, since it is smaller than the sum of its proper divisors (32030945388062).

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

22224420042400 is a wasteful number, since it uses less digits than its factorization.

22224420042400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780525073 (or 27780525060 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 22224420042400 its reverse (424002442222), we get a palindrome (22648422484622).

The spelling of 22224420042400 in words is "twenty-two trillion, two hundred twenty-four billion, four hundred twenty million, forty-two thousand, four hundred".