22434423421 has 2 divisors, whose sum is σ = 22434423422. Its totient is φ = 22434423420.

The previous prime is 22434423409. The next prime is 22434423433. The reversal of 22434423421 is 12432443422.

It is a balanced prime because it is at equal distance from previous prime (22434423409) and next prime (22434423433).

It can be written as a sum of positive squares in only one way, i.e., 11884052196 + 10550371225 = 109014^2 + 102715^2 .

It is a cyclic number.

It is not a de Polignac number, because 22434423421 - 2¹³ = 22434415229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22434423521) 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, 11217211710 + 11217211711.

It is an arithmetic number, because the mean of its divisors is an integer number (11217211711).

Almost surely, 2^22434423421 is an apocalyptic number.

It is an amenable number.

22434423421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22434423421 is an equidigital number, since it uses as much as digits as its factorization.

22434423421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 31.

Adding to 22434423421 its reverse (12432443422), we get a palindrome (34866866843).

The spelling of 22434423421 in words is "twenty-two billion, four hundred thirty-four million, four hundred twenty-three thousand, four hundred twenty-one".