222000420 has 48 divisors (see below), whose sum is σ = 624758400. Its totient is φ = 58899456.

The previous prime is 222000379. The next prime is 222000431. The reversal of 222000420 is 24000222.

It is a happy number.

222000420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×222000420³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 222000396 and 222000405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2644 + ... + 21236.

It is an arithmetic number, because the mean of its divisors is an integer number (13015800).

Almost surely, 2^222000420 is an apocalyptic number.

222000420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222000420 is an abundant number, since it is smaller than the sum of its proper divisors (402757980).

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

222000420 is a wasteful number, since it uses less digits than its factorization.

222000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18804 (or 18802 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 222000420 is about 14899.6785200218. The cubic root of 222000420 is about 605.5052765008.

Adding to 222000420 its reverse (24000222), we get a palindrome (246000642).

The spelling of 222000420 in words is "two hundred twenty-two million, four hundred twenty", and thus it is an aban number.