4021440220402 has 16 divisors (see below), whose sum is σ = 6866648914752. Its totient is φ = 1748452269520.

The previous prime is 4021440220397. The next prime is 4021440220403. The reversal of 4021440220402 is 2040220441204.

It is not an unprimeable number, because it can be changed into a prime (4021440220403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3973754653 + ... + 3973755664.

It is an arithmetic number, because the mean of its divisors is an integer number (429165557172).

Almost surely, 2^{4021440220402} is an apocalyptic number.

4021440220402 is a deficient number, since it is larger than the sum of its proper divisors (2845208694350).

4021440220402 is a wasteful number, since it uses less digits than its factorization.

4021440220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947510353.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 4021440220402 its reverse (2040220441204), we get a palindrome (6061660661606).

The spelling of 4021440220402 in words is "four trillion, twenty-one billion, four hundred forty million, two hundred twenty thousand, four hundred two".