4331004021021 has 16 divisors (see below), whose sum is σ = 6114514932864. Its totient is φ = 2717423245824.

The previous prime is 4331004021017. The next prime is 4331004021037. The reversal of 4331004021021 is 1201204001334.

It is not a de Polignac number, because 4331004021021 - 2² = 4331004021017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4331004021041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966601 + ... + 3097793.

It is an arithmetic number, because the mean of its divisors is an integer number (382157183304).

Almost surely, 2^{4331004021021} is an apocalyptic number.

It is an amenable number.

4331004021021 is a deficient number, since it is larger than the sum of its proper divisors (1783510911843).

4331004021021 is a wasteful number, since it uses less digits than its factorization.

4331004021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171060.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 4331004021021 its reverse (1201204001334), we get a palindrome (5532208022355).

The spelling of 4331004021021 in words is "four trillion, three hundred thirty-one billion, four million, twenty-one thousand, twenty-one".