221424423422 has 32 divisors (see below), whose sum is σ = 336107833344. Its totient is φ = 109398088800.

The previous prime is 221424423383. The next prime is 221424423457. The reversal of 221424423422 is 224324424122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44793083 + ... + 44798025.

It is an arithmetic number, because the mean of its divisors is an integer number (10503369792).

Almost surely, 2^221424423422 is an apocalyptic number.

221424423422 is a deficient number, since it is larger than the sum of its proper divisors (114683409922).

221424423422 is a wasteful number, since it uses less digits than its factorization.

221424423422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864.

The product of its digits is 49152, while the sum is 32.

Adding to 221424423422 its reverse (224324424122), we get a palindrome (445748847544).

The spelling of 221424423422 in words is "two hundred twenty-one billion, four hundred twenty-four million, four hundred twenty-three thousand, four hundred twenty-two".