4442020342121 has 4 divisors (see below), whose sum is σ = 4448080397892. Its totient is φ = 4435960286352.

The previous prime is 4442020342093. The next prime is 4442020342141. The reversal of 4442020342121 is 1212430202444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2909289680896 + 1532730661225 = 1705664^2 + 1238035^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442020342121 - 2²⁶ = 4441953233257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4442020342141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030026786 + ... + 3030028251.

It is an arithmetic number, because the mean of its divisors is an integer number (1112020099473).

Almost surely, 2^{4442020342121} is an apocalyptic number.

It is an amenable number.

4442020342121 is a deficient number, since it is larger than the sum of its proper divisors (6060055771).

4442020342121 is an equidigital number, since it uses as much as digits as its factorization.

4442020342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060055770.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 4442020342121 its reverse (1212430202444), we get a palindrome (5654450544565).

The spelling of 4442020342121 in words is "four trillion, four hundred forty-two billion, twenty million, three hundred forty-two thousand, one hundred twenty-one".