22042387819 has 2 divisors, whose sum is σ = 22042387820. Its totient is φ = 22042387818.

The previous prime is 22042387753. The next prime is 22042387849. The reversal of 22042387819 is 91878324022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22042387819 - 2⁹ = 22042387307 is a prime.

It is a super-2 number, since 2×22042387819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22042387849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11021193909 + 11021193910.

It is an arithmetic number, because the mean of its divisors is an integer number (11021193910).

Almost surely, 2^22042387819 is an apocalyptic number.

22042387819 is a deficient number, since it is larger than the sum of its proper divisors (1).

22042387819 is an equidigital number, since it uses as much as digits as its factorization.

22042387819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 22042387819 in words is "twenty-two billion, forty-two million, three hundred eighty-seven thousand, eight hundred nineteen".