4021401212443 has 8 divisors (see below), whose sum is σ = 4026368126880. Its totient is φ = 4016434579200.

The previous prime is 4021401212363. The next prime is 4021401212497. The reversal of 4021401212443 is 3442121041204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021401212443 is a prime.

It is a super-2 number, since 2×4021401212443² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021401212243) 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, 53143371 + ... + 53218987.

It is an arithmetic number, because the mean of its divisors is an integer number (503296015860).

Almost surely, 2^{4021401212443} is an apocalyptic number.

4021401212443 is a deficient number, since it is larger than the sum of its proper divisors (4966914437).

4021401212443 is an equidigital number, since it uses as much as digits as its factorization.

4021401212443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140597.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 4021401212443 its reverse (3442121041204), we get a palindrome (7463522253647).

The spelling of 4021401212443 in words is "four trillion, twenty-one billion, four hundred one million, two hundred twelve thousand, four hundred forty-three".