22042421069 has 2 divisors, whose sum is σ = 22042421070. Its totient is φ = 22042421068.

The previous prime is 22042421057. The next prime is 22042421083. The reversal of 22042421069 is 96012424022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13124451844 + 8917969225 = 114562^2 + 94435^2 .

It is a cyclic number.

It is not a de Polignac number, because 22042421069 - 2¹² = 22042416973 is a prime.

It is a super-2 number, since 2×22042421069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22042421039) 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, 11021210534 + 11021210535.

It is an arithmetic number, because the mean of its divisors is an integer number (11021210535).

Almost surely, 2^22042421069 is an apocalyptic number.

It is an amenable number.

22042421069 is a deficient number, since it is larger than the sum of its proper divisors (1).

22042421069 is an equidigital number, since it uses as much as digits as its factorization.

22042421069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 22042421069 in words is "twenty-two billion, forty-two million, four hundred twenty-one thousand, sixty-nine".