222222424 has 16 divisors (see below), whose sum is σ = 416926800. Its totient is φ = 111041952.

The previous prime is 222222401. The next prime is 222222431. The reversal of 222222424 is 424222222.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 222222395 and 222222404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6549 + ... + 22075.

It is an arithmetic number, because the mean of its divisors is an integer number (26057925).

Almost surely, 2^222222424 is an apocalyptic number.

It is an amenable number.

222222424 is a deficient number, since it is larger than the sum of its proper divisors (194704376).

222222424 is a wasteful number, since it uses less digits than its factorization.

222222424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17322 (or 17318 counting only the distinct ones).

The product of its digits is 2048, while the sum is 22.

The square root of 222222424 is about 14907.1266178295. The cubic root of 222222424 is about 605.7070476046.

Adding to 222222424 its reverse (424222222), we get a palindrome (646444646).

It can be divided in two parts, 222222 and 424, that multiplied together give a triangular number (94222128 = T₁₃₇₂₇).

The spelling of 222222424 in words is "two hundred twenty-two million, two hundred twenty-two thousand, four hundred twenty-four".