222424331421 has 32 divisors (see below), whose sum is σ = 314371952640. Its totient is φ = 139491716544.

The previous prime is 222424331419. The next prime is 222424331443. The reversal of 222424331421 is 124133424222.

It is not a de Polignac number, because 222424331421 - 2¹ = 222424331419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222424331471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8101900 + ... + 8129306.

It is an arithmetic number, because the mean of its divisors is an integer number (9824123520).

Almost surely, 2^222424331421 is an apocalyptic number.

It is an amenable number.

222424331421 is a deficient number, since it is larger than the sum of its proper divisors (91947621219).

222424331421 is a wasteful number, since it uses less digits than its factorization.

222424331421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28425.

The product of its digits is 18432, while the sum is 30.

Adding to 222424331421 its reverse (124133424222), we get a palindrome (346557755643).

The spelling of 222424331421 in words is "two hundred twenty-two billion, four hundred twenty-four million, three hundred thirty-one thousand, four hundred twenty-one".