4021404421999 has 8 divisors (see below), whose sum is σ = 4048919190272. Its totient is φ = 3993924331800.

The previous prime is 4021404421987. The next prime is 4021404422033. The reversal of 4021404421999 is 9991244041204.

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

It is a cyclic number.

It is not a de Polignac number, because 4021404421999 - 2⁹ = 4021404421487 is a prime.

It is a super-2 number, since 2×4021404421999² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021404421919) 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, 8436777 + ... + 8900674.

It is an arithmetic number, because the mean of its divisors is an integer number (506114898784).

Almost surely, 2^{4021404421999} is an apocalyptic number.

4021404421999 is a deficient number, since it is larger than the sum of its proper divisors (27514768273).

4021404421999 is a wasteful number, since it uses less digits than its factorization.

4021404421999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17339037.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 4021404421999 in words is "four trillion, twenty-one billion, four hundred four million, four hundred twenty-one thousand, nine hundred ninety-nine".