222313421 has 12 divisors (see below), whose sum is σ = 244866300. Its totient is φ = 201685440.

The previous prime is 222313411. The next prime is 222313453. The reversal of 222313421 is 124313222.

222313421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50965321 + 171348100 = 7139^2 + 13090^2 .

It is not a de Polignac number, because 222313421 - 2¹⁴ = 222297037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222313393 and 222313402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222313411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67235 + ... + 70463.

It is an arithmetic number, because the mean of its divisors is an integer number (20405525).

Almost surely, 2^222313421 is an apocalyptic number.

It is an amenable number.

222313421 is a deficient number, since it is larger than the sum of its proper divisors (22552879).

222313421 is a wasteful number, since it uses less digits than its factorization.

222313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820 (or 3809 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 222313421 is about 14910.1784362227. The cubic root of 222313421 is about 605.7897125335.

Adding to 222313421 its reverse (124313222), we get a palindrome (346626643).

It can be divided in two parts, 22231 and 3421, that added together give a palindrome (25652).

The spelling of 222313421 in words is "two hundred twenty-two million, three hundred thirteen thousand, four hundred twenty-one".