42213220443 has 16 divisors (see below), whose sum is σ = 63992480640. Its totient is φ = 27487677672.

The previous prime is 42213220393. The next prime is 42213220537. The reversal of 42213220443 is 34402231224.

42213220443 is a `hidden beast` number, since 4 + 2 + 213 + 2 + 2 + 0 + 443 = 666.

It is not a de Polignac number, because 42213220443 - 2⁹ = 42213219931 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (42213225443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18178521 + ... + 18180842.

It is an arithmetic number, because the mean of its divisors is an integer number (3999530040).

Almost surely, 2^42213220443 is an apocalyptic number.

42213220443 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

42213220443 is a deficient number, since it is larger than the sum of its proper divisors (21779260197).

42213220443 is a wasteful number, since it uses less digits than its factorization.

42213220443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36359415 (or 36359409 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 42213220443 its reverse (34402231224), we get a palindrome (76615451667).

The spelling of 42213220443 in words is "forty-two billion, two hundred thirteen million, two hundred twenty thousand, four hundred forty-three".