4004220220442 has 16 divisors (see below), whose sum is σ = 6590400190920. Its totient is φ = 1813231797312.

The previous prime is 4004220220397. The next prime is 4004220220447. The reversal of 4004220220442 is 2440220224004.

4004220220442 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 4 ways, for example, as 2602030312561 + 1402189907881 = 1613081^2 + 1184141^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (4004220220447) 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, 1452908717 + ... + 1452911472.

Almost surely, 2^{4004220220442} is an apocalyptic number.

4004220220442 is a deficient number, since it is larger than the sum of its proper divisors (2586179970478).

4004220220442 is a wasteful number, since it uses less digits than its factorization.

4004220220442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905820257.

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

Adding to 4004220220442 its reverse (2440220224004), we get a palindrome (6444440444446).

The spelling of 4004220220442 in words is "four trillion, four billion, two hundred twenty million, two hundred twenty thousand, four hundred forty-two".