2020220240420 has 12 divisors (see below), whose sum is σ = 4242462504924. Its totient is φ = 808088096160.

The previous prime is 2020220240371. The next prime is 2020220240449. The reversal of 2020220240420 is 240420220202.

It can be written as a sum of positive squares in 2 ways, for example, as 407889150244 + 1612331090176 = 638662^2 + 1269776^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 101011012021 = 2020220240420 / (2 + 0 + 2 + 0 + 2 + 2 + 0 + 2 + 4 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2020220240392 and 2020220240401.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 50505505991 + ... + 50505506030.

It is an arithmetic number, because the mean of its divisors is an integer number (353538542077).

Almost surely, 2^{2020220240420} is an apocalyptic number.

2020220240420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020220240420 is an abundant number, since it is smaller than the sum of its proper divisors (2222242264504).

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

2020220240420 is a wasteful number, since it uses less digits than its factorization.

2020220240420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101011012030 (or 101011012028 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 2020220240420 its reverse (240420220202), we get a palindrome (2260640460622).

The spelling of 2020220240420 in words is "two trillion, twenty billion, two hundred twenty million, two hundred forty thousand, four hundred twenty".