4021443331412 has 24 divisors (see below), whose sum is σ = 7578928564872. Its totient is φ = 1856037398400.

The previous prime is 4021443331397. The next prime is 4021443331483. The reversal of 4021443331412 is 2141333441204.

It can be written as a sum of positive squares in 4 ways, for example, as 53682109636 + 3967761221776 = 231694^2 + 1991924^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13515362 + ... + 13809702.

It is an arithmetic number, because the mean of its divisors is an integer number (315788690203).

Almost surely, 2^{4021443331412} is an apocalyptic number.

It is an amenable number.

4021443331412 is a deficient number, since it is larger than the sum of its proper divisors (3557485233460).

4021443331412 is a wasteful number, since it uses less digits than its factorization.

4021443331412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557099 (or 557097 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 4021443331412 its reverse (2141333441204), we get a palindrome (6162776772616).

The spelling of 4021443331412 in words is "four trillion, twenty-one billion, four hundred forty-three million, three hundred thirty-one thousand, four hundred twelve".