4021434110421 has 72 divisors (see below), whose sum is σ = 7214454149760. Its totient is φ = 2113536716928.

The previous prime is 4021434110417. The next prime is 4021434110437. The reversal of 4021434110421 is 1240114341204.

4021434110421 is a `hidden beast` number, since 4 + 0 + 214 + 341 + 104 + 2 + 1 = 666.

It is not a de Polignac number, because 4021434110421 - 2² = 4021434110417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021434110821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2267440 + ... + 3630998.

It is an arithmetic number, because the mean of its divisors is an integer number (100200752080).

Almost surely, 2^{4021434110421} is an apocalyptic number.

It is an amenable number.

4021434110421 is a deficient number, since it is larger than the sum of its proper divisors (3193020039339).

4021434110421 is a wasteful number, since it uses less digits than its factorization.

4021434110421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363875 (or 1363859 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 4021434110421 its reverse (1240114341204), we get a palindrome (5261548451625).

The spelling of 4021434110421 in words is "four trillion, twenty-one billion, four hundred thirty-four million, one hundred ten thousand, four hundred twenty-one".