220022220424 has 8 divisors (see below), whose sum is σ = 412541663310. Its totient is φ = 110011110208.

The previous prime is 220022220413. The next prime is 220022220427. The reversal of 220022220424 is 424022220022.

It can be written as a sum of positive squares in only one way, i.e., 119861364100 + 100160856324 = 346210^2 + 316482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 220022220395 and 220022220404.

It is not an unprimeable number, because it can be changed into a prime (220022220427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13751388769 + ... + 13751388784.

Almost surely, 2^220022220424 is an apocalyptic number.

It is an amenable number.

220022220424 is a deficient number, since it is larger than the sum of its proper divisors (192519442886).

220022220424 is a wasteful number, since it uses less digits than its factorization.

220022220424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27502777559 (or 27502777555 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 220022220424 its reverse (424022220022), we get a palindrome (644044440446).

The spelling of 220022220424 in words is "two hundred twenty billion, twenty-two million, two hundred twenty thousand, four hundred twenty-four".