42021335224 has 64 divisors (see below), whose sum is σ = 87029704800. Its totient is φ = 18862272000.

The previous prime is 42021335197. The next prime is 42021335273. The reversal of 42021335224 is 42253312024.

It is a super-2 number, since 2×42021335224² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42021335192 and 42021335201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3522582 + ... + 3534490.

Almost surely, 2^42021335224 is an apocalyptic number.

42021335224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42021335224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43514852400).

42021335224 is an abundant number, since it is smaller than the sum of its proper divisors (45008369576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42021335224 is a wasteful number, since it uses less digits than its factorization.

42021335224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12424 (or 12420 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 42021335224 its reverse (42253312024), we get a palindrome (84274647248).

The spelling of 42021335224 in words is "forty-two billion, twenty-one million, three hundred thirty-five thousand, two hundred twenty-four".