220002220 has 12 divisors (see below), whose sum is σ = 462004704. Its totient is φ = 88000880.

The previous prime is 220002203. The next prime is 220002283. The reversal of 220002220 is 22200022.

It is a Harshad number since it is a multiple of its sum of digits (10).

220002220 is a modest number, since divided by 2220 gives 220 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 220002197 and 220002206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500036 + ... + 5500075.

It is an arithmetic number, because the mean of its divisors is an integer number (38500392).

Almost surely, 2^220002220 is an apocalyptic number.

220002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220002220 is an abundant number, since it is smaller than the sum of its proper divisors (242002484).

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

220002220 is a wasteful number, since it uses less digits than its factorization.

220002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000120 (or 11000118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 220002220 is about 14832.4718101873. The cubic root of 220002220 is about 603.6831042366.

Adding to 220002220 its reverse (22200022), we get a palindrome (242202242).

The spelling of 220002220 in words is "two hundred twenty million, two thousand, two hundred twenty".