220400222 has 8 divisors (see below), whose sum is σ = 377828976. Its totient is φ = 94457232.

The previous prime is 220400177. The next prime is 220400227. The reversal of 220400222 is 222004022.

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: 15742873 = 220400222 / (2 + 2 + 0 + 4 + 0 + 0 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 220400197 and 220400206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220400227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7871423 + ... + 7871450.

It is an arithmetic number, because the mean of its divisors is an integer number (47228622).

Almost surely, 2^220400222 is an apocalyptic number.

220400222 is a deficient number, since it is larger than the sum of its proper divisors (157428754).

220400222 is a wasteful number, since it uses less digits than its factorization.

220400222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15742882.

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

The square root of 220400222 is about 14845.8823247391. The cubic root of 220400222 is about 604.0469222936.

Adding to 220400222 its reverse (222004022), we get a palindrome (442404244).

The spelling of 220400222 in words is "two hundred twenty million, four hundred thousand, two hundred twenty-two".