42223434020021 has 16 divisors (see below), whose sum is σ = 45903193670400. Its totient is φ = 38743173903168.

The previous prime is 42223434020017. The next prime is 42223434020023. The reversal of 42223434020021 is 12002043432224.

42223434020021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42223434020021 - 2² = 42223434020017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42223434020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457521581 + ... + 457613858.

It is an arithmetic number, because the mean of its divisors is an integer number (2868949604400).

Almost surely, 2^{42223434020021} is an apocalyptic number.

It is an amenable number.

42223434020021 is a deficient number, since it is larger than the sum of its proper divisors (3679759650379).

42223434020021 is a wasteful number, since it uses less digits than its factorization.

42223434020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915135548.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 42223434020021 its reverse (12002043432224), we get a palindrome (54225477452245).

The spelling of 42223434020021 in words is "forty-two trillion, two hundred twenty-three billion, four hundred thirty-four million, twenty thousand, twenty-one".