22042021019 has 2 divisors, whose sum is σ = 22042021020. Its totient is φ = 22042021018.

The previous prime is 22042021013. The next prime is 22042021069. The reversal of 22042021019 is 91012024022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22042021019 is a prime.

It is a super-2 number, since 2×22042021019² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 22042020985 and 22042021003.

It is not a weakly prime, because it can be changed into another prime (22042021013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11021010509 + 11021010510.

It is an arithmetic number, because the mean of its divisors is an integer number (11021010510).

Almost surely, 2^22042021019 is an apocalyptic number.

22042021019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22042021019 is an equidigital number, since it uses as much as digits as its factorization.

22042021019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 22042021019 in words is "twenty-two billion, forty-two million, twenty-one thousand, nineteen".