22043544031 has 4 divisors (see below), whose sum is σ = 22083120072. Its totient is φ = 22003967992.

The previous prime is 22043544001. The next prime is 22043544053. The reversal of 22043544031 is 13044534022.

It is a happy number.

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 22043544031 - 2¹⁷ = 22043412959 is a prime.

It is a super-2 number, since 2×22043544031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043544001) 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, 19787185 + ... + 19788298.

It is an arithmetic number, because the mean of its divisors is an integer number (5520780018).

Almost surely, 2^22043544031 is an apocalyptic number.

22043544031 is a deficient number, since it is larger than the sum of its proper divisors (39576041).

22043544031 is an equidigital number, since it uses as much as digits as its factorization.

22043544031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39576040.

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

The spelling of 22043544031 in words is "twenty-two billion, forty-three million, five hundred forty-four thousand, thirty-one".