4442412031021 has 2 divisors, whose sum is σ = 4442412031022. Its totient is φ = 4442412031020.

The previous prime is 4442412030989. The next prime is 4442412031033. The reversal of 4442412031021 is 1201302142444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2591410965796 + 1851001065225 = 1609786^2 + 1360515^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442412031021 - 2⁵ = 4442412030989 is a prime.

It is a super-3 number, since 3×4442412031021³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4442412031081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221206015510 + 2221206015511.

It is an arithmetic number, because the mean of its divisors is an integer number (2221206015511).

Almost surely, 2^{4442412031021} is an apocalyptic number.

It is an amenable number.

4442412031021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442412031021 is an equidigital number, since it uses as much as digits as its factorization.

4442412031021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 4442412031021 its reverse (1201302142444), we get a palindrome (5643714173465).

The spelling of 4442412031021 in words is "four trillion, four hundred forty-two billion, four hundred twelve million, thirty-one thousand, twenty-one".