4042412223021 has 24 divisors (see below), whose sum is σ = 6250632903424. Its totient is φ = 2608007880960.

The previous prime is 4042412222987. The next prime is 4042412223067. The reversal of 4042412223021 is 1203222142404.

It is a happy number.

4042412223021 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 412 + 223 + 0 + 21 = 666.

4042412223021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4042412223021 - 2¹⁰ = 4042412221997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042412228021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268306036 + ... + 268321101.

Almost surely, 2^{4042412223021} is an apocalyptic number.

It is an amenable number.

4042412223021 is a deficient number, since it is larger than the sum of its proper divisors (2208220680403).

4042412223021 is an equidigital number, since it uses as much as digits as its factorization.

4042412223021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536627183 (or 536627171 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 4042412223021 its reverse (1203222142404), we get a palindrome (5245634365425).

It can be divided in two parts, 404241 and 2223021, that added together give a palindrome (2627262).

The spelling of 4042412223021 in words is "four trillion, forty-two billion, four hundred twelve million, two hundred twenty-three thousand, twenty-one".