222200420 has 24 divisors (see below), whose sum is σ = 502515384. Its totient is φ = 82043136.

The previous prime is 222200417. The next prime is 222200441. The reversal of 222200420 is 24002222.

222200420 is digitally balanced in base 3, 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 4 ways, for example, as 48804196 + 173396224 = 6986^2 + 13168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222200395 and 222200404.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 427049 + ... + 427568.

It is an arithmetic number, because the mean of its divisors is an integer number (20938141).

Almost surely, 2^222200420 is an apocalyptic number.

222200420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222200420 is an abundant number, since it is smaller than the sum of its proper divisors (280314964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222200420 is a wasteful number, since it uses less digits than its factorization.

222200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854639 (or 854637 counting only the distinct ones).

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

The square root of 222200420 is about 14906.3885632973. The cubic root of 222200420 is about 605.6870549961.

Adding to 222200420 its reverse (24002222), we get a palindrome (246202642).

The spelling of 222200420 in words is "two hundred twenty-two million, two hundred thousand, four hundred twenty".