4021434314421 has 8 divisors (see below), whose sum is σ = 5361982663584. Its totient is φ = 2680921087440.

The previous prime is 4021434314383. The next prime is 4021434314479. The reversal of 4021434314421 is 1244134341204.

It is a happy number.

4021434314421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4021434314421 - 2⁹ = 4021434313909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021434314921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8512210 + ... + 8972211.

It is an arithmetic number, because the mean of its divisors is an integer number (670247832948).

Almost surely, 2^{4021434314421} is an apocalyptic number.

It is an amenable number.

4021434314421 is a deficient number, since it is larger than the sum of its proper divisors (1340548349163).

4021434314421 is a wasteful number, since it uses less digits than its factorization.

4021434314421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561091.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 4021434314421 its reverse (1244134341204), we get a palindrome (5265568655625).

The spelling of 4021434314421 in words is "four trillion, twenty-one billion, four hundred thirty-four million, three hundred fourteen thousand, four hundred twenty-one".