4021442232021 has 24 divisors (see below), whose sum is σ = 6151045080960. Its totient is φ = 2523010068096.

The previous prime is 4021442232019. The next prime is 4021442232091. The reversal of 4021442232021 is 1202322441204.

It is a happy number.

4021442232021 is a `hidden beast` number, since 4 + 0 + 214 + 422 + 3 + 2 + 0 + 21 = 666.

4021442232021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4021442232021 - 2¹ = 4021442232019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021442232091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278590 + ... + 2849648.

It is an arithmetic number, because the mean of its divisors is an integer number (256293545040).

Almost surely, 2^{4021442232021} is an apocalyptic number.

It is an amenable number.

4021442232021 is a deficient number, since it is larger than the sum of its proper divisors (2129602848939).

4021442232021 is a wasteful number, since it uses less digits than its factorization.

4021442232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581305 (or 2581302 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 4021442232021 its reverse (1202322441204), we get a palindrome (5223764673225).

The spelling of 4021442232021 in words is "four trillion, twenty-one billion, four hundred forty-two million, two hundred thirty-two thousand, twenty-one".