4021330230021 has 16 divisors (see below), whose sum is σ = 5783955097536. Its totient is φ = 2470491614976.

The previous prime is 4021330229977. The next prime is 4021330230023. The reversal of 4021330230021 is 1200320331204.

It is not a de Polignac number, because 4021330230021 - 2²⁷ = 4021196012293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4021330230021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021330230023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86917035 + ... + 86963288.

It is an arithmetic number, because the mean of its divisors is an integer number (361497193596).

Almost surely, 2^{4021330230021} is an apocalyptic number.

It is an amenable number.

4021330230021 is a deficient number, since it is larger than the sum of its proper divisors (1762624867515).

4021330230021 is a wasteful number, since it uses less digits than its factorization.

4021330230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173880932.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 4021330230021 its reverse (1200320331204), we get a palindrome (5221650561225).

The spelling of 4021330230021 in words is "four trillion, twenty-one billion, three hundred thirty million, two hundred thirty thousand, twenty-one".