220022222 has 8 divisors (see below), whose sum is σ = 377180976. Its totient is φ = 94295232.

The previous prime is 220022207. The next prime is 220022233. The reversal of 220022222 is 222220022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 15715873 = 220022222 / (2 + 2 + 0 + 0 + 2 + 2 + 2 + 2 + 2).

220022222 is a modest number, since divided by 22222 gives 2200 as remainder.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 220022197 and 220022206.

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, 7857923 + ... + 7857950.

It is an arithmetic number, because the mean of its divisors is an integer number (47147622).

Almost surely, 2^220022222 is an apocalyptic number.

220022222 is a deficient number, since it is larger than the sum of its proper divisors (157158754).

220022222 is a wasteful number, since it uses less digits than its factorization.

220022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715882.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 220022222 is about 14833.1460587429. The cubic root of 220022222 is about 603.7013987543.

Adding to 220022222 its reverse (222220022), we get a palindrome (442242244).

It can be divided in two parts, 220022 and 222, that multiplied together give a palindrome (48844884).

The spelling of 220022222 in words is "two hundred twenty million, twenty-two thousand, two hundred twenty-two".