22241819 has 4 divisors (see below), whose sum is σ = 22320696. Its totient is φ = 22162944.

The previous prime is 22241801. The next prime is 22241827. The reversal of 22241819 is 91814222.

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 22241819 - 2⁸ = 22241563 is a prime.

It is a super-2 number, since 2×22241819² = 989397024857522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22241791 and 22241800.

It is not an unprimeable number, because it can be changed into a prime (22241519) 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, 39014 + ... + 39579.

It is an arithmetic number, because the mean of its divisors is an integer number (5580174).

Almost surely, 2^22241819 is an apocalyptic number.

22241819 is a deficient number, since it is larger than the sum of its proper divisors (78877).

22241819 is an equidigital number, since it uses as much as digits as its factorization.

22241819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78876.

The product of its digits is 2304, while the sum is 29.

The square root of 22241819 is about 4716.1233020353. The cubic root of 22241819 is about 281.2268402987.

The spelling of 22241819 in words is "twenty-two million, two hundred forty-one thousand, eight hundred nineteen".