22124512243 has 4 divisors (see below), whose sum is σ = 22404569440. Its totient is φ = 21844455048.

The previous prime is 22124512237. The next prime is 22124512271. The reversal of 22124512243 is 34221542122.

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 22124512243 - 2⁵ = 22124512211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22124512273) 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, 140028480 + ... + 140028637.

It is an arithmetic number, because the mean of its divisors is an integer number (5601142360).

Almost surely, 2^22124512243 is an apocalyptic number.

22124512243 is a deficient number, since it is larger than the sum of its proper divisors (280057197).

22124512243 is an equidigital number, since it uses as much as digits as its factorization.

22124512243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280057196.

The product of its digits is 7680, while the sum is 28.

The spelling of 22124512243 in words is "twenty-two billion, one hundred twenty-four million, five hundred twelve thousand, two hundred forty-three".