4220420420420 has 12 divisors (see below), whose sum is σ = 8862882882924. Its totient is φ = 1688168168160.

The previous prime is 4220420420401. The next prime is 4220420420477. The reversal of 4220420420420 is 240240240224.

4220420420420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1789559009536 + 2430861410884 = 1337744^2 + 1559122^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4220420420420.

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, 105510510491 + ... + 105510510530.

It is an arithmetic number, because the mean of its divisors is an integer number (738573573577).

Almost surely, 2^{4220420420420} is an apocalyptic number.

It is an amenable number.

4220420420420 is an abundant number, since it is smaller than the sum of its proper divisors (4642462462504).

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

4220420420420 is a wasteful number, since it uses less digits than its factorization.

4220420420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211021021030 (or 211021021028 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 4220420420420 its reverse (240240240224), we get a palindrome (4460660660644).

The spelling of 4220420420420 in words is "four trillion, two hundred twenty billion, four hundred twenty million, four hundred twenty thousand, four hundred twenty".