22240042819 has 4 divisors (see below), whose sum is σ = 22315947696. Its totient is φ = 22164137944.

The previous prime is 22240042817. The next prime is 22240042871. The reversal of 22240042819 is 91824004222.

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 22240042819 - 2¹ = 22240042817 is a prime.

It is a super-2 number, since 2×22240042819² (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 (22240042813) 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, 37951999 + ... + 37952584.

It is an arithmetic number, because the mean of its divisors is an integer number (5578986924).

Almost surely, 2^22240042819 is an apocalyptic number.

22240042819 is a deficient number, since it is larger than the sum of its proper divisors (75904877).

22240042819 is an equidigital number, since it uses as much as digits as its factorization.

22240042819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75904876.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 22240042819 in words is "twenty-two billion, two hundred forty million, forty-two thousand, eight hundred nineteen".