22042413443 has 4 divisors (see below), whose sum is σ = 22047297840. Its totient is φ = 22037529048.

The previous prime is 22042413439. The next prime is 22042413499. The reversal of 22042413443 is 34431424022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22042413443 - 2² = 22042413439 is a prime.

It is a super-2 number, since 2×22042413443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22042413403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2435423 + ... + 2444456.

It is an arithmetic number, because the mean of its divisors is an integer number (5511824460).

Almost surely, 2^22042413443 is an apocalyptic number.

22042413443 is a deficient number, since it is larger than the sum of its proper divisors (4884397).

22042413443 is an equidigital number, since it uses as much as digits as its factorization.

22042413443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884396.

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

Adding to 22042413443 its reverse (34431424022), we get a palindrome (56473837465).

The spelling of 22042413443 in words is "twenty-two billion, forty-two million, four hundred thirteen thousand, four hundred forty-three".