4042412322421 has 12 divisors (see below), whose sum is σ = 4475279015200. Its totient is φ = 3648482002440.

The previous prime is 4042412322371. The next prime is 4042412322503. The reversal of 4042412322421 is 1242232142404.

It is not a de Polignac number, because 4042412322421 - 2²⁵ = 4042378767989 is a prime.

It is a super-2 number, since 2×4042412322421² (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 (4042412332421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120157161 + ... + 120190798.

Almost surely, 2^{4042412322421} is an apocalyptic number.

It is an amenable number.

4042412322421 is a deficient number, since it is larger than the sum of its proper divisors (432866692779).

4042412322421 is a wasteful number, since it uses less digits than its factorization.

4042412322421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240348120 (or 240348109 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4042412322421 its reverse (1242232142404), we get a palindrome (5284644464825).

The spelling of 4042412322421 in words is "four trillion, forty-two billion, four hundred twelve million, three hundred twenty-two thousand, four hundred twenty-one".