221014424 has 8 divisors (see below), whose sum is σ = 414402060. Its totient is φ = 110507208.

The previous prime is 221014421. The next prime is 221014427. The reversal of 221014424 is 424410122.

221014424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221014421) and next prime (221014427).

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 221014396 and 221014405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221014421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13813394 + ... + 13813409.

Almost surely, 2^221014424 is an apocalyptic number.

It is an amenable number.

221014424 is a deficient number, since it is larger than the sum of its proper divisors (193387636).

221014424 is a wasteful number, since it uses less digits than its factorization.

221014424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626809 (or 27626805 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 221014424 is about 14866.5538710220. The cubic root of 221014424 is about 604.6075126621.

Adding to 221014424 its reverse (424410122), we get a palindrome (645424546).

The spelling of 221014424 in words is "two hundred twenty-one million, fourteen thousand, four hundred twenty-four".