22440043211 has 4 divisors (see below), whose sum is σ = 22478272152. Its totient is φ = 22401814272.

The previous prime is 22440043181. The next prime is 22440043247. The reversal of 22440043211 is 11234004422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11234004422 = 2 ⋅5617002211.

It is a cyclic number.

It is not a de Polignac number, because 22440043211 - 2²⁶ = 22372934347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22440043291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19113590 + ... + 19114763.

It is an arithmetic number, because the mean of its divisors is an integer number (5619568038).

Almost surely, 2^22440043211 is an apocalyptic number.

22440043211 is a deficient number, since it is larger than the sum of its proper divisors (38228941).

22440043211 is an equidigital number, since it uses as much as digits as its factorization.

22440043211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38228940.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22440043211 its reverse (11234004422), we get a palindrome (33674047633).

The spelling of 22440043211 in words is "twenty-two billion, four hundred forty million, forty-three thousand, two hundred eleven".