22203432404240 has 20 divisors (see below), whose sum is σ = 51622980340044. Its totient is φ = 8881372961664.

The previous prime is 22203432404239. The next prime is 22203432404273. The reversal of 22203432404240 is 4240423430222.

It can be written as a sum of positive squares in 2 ways, for example, as 12328553529616 + 9874878874624 = 3511204^2 + 3142432^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 22203432404197 and 22203432404206.

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, 138771452447 + ... + 138771452606.

Almost surely, 2^{22203432404240} is an apocalyptic number.

22203432404240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22203432404240 is an abundant number, since it is smaller than the sum of its proper divisors (29419547935804).

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

22203432404240 is a wasteful number, since it uses less digits than its factorization.

22203432404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277542905066 (or 277542905060 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 22203432404240 its reverse (4240423430222), we get a palindrome (26443855834462).

The spelling of 22203432404240 in words is "twenty-two trillion, two hundred three billion, four hundred thirty-two million, four hundred four thousand, two hundred forty".