22241225819 has 4 divisors (see below), whose sum is σ = 22278732696. Its totient is φ = 22203718944.

The previous prime is 22241225813. The next prime is 22241225821. The reversal of 22241225819 is 91852214222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91852214222 = 2 ⋅45926107111.

It is a cyclic number.

It is not a de Polignac number, because 22241225819 - 2¹⁶ = 22241160283 is a prime.

It is a super-2 number, since 2×22241225819² (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 (22241225813) 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, 18752549 + ... + 18753734.

It is an arithmetic number, because the mean of its divisors is an integer number (5569683174).

Almost surely, 2^22241225819 is an apocalyptic number.

22241225819 is a deficient number, since it is larger than the sum of its proper divisors (37506877).

22241225819 is an equidigital number, since it uses as much as digits as its factorization.

22241225819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37506876.

The product of its digits is 46080, while the sum is 38.

The spelling of 22241225819 in words is "twenty-two billion, two hundred forty-one million, two hundred twenty-five thousand, eight hundred nineteen".