220205220 has 48 divisors (see below), whose sum is σ = 643386240. Its totient is φ = 56167936.

The previous prime is 220205201. The next prime is 220205239. The reversal of 220205220 is 22502022.

It is an interprime number because it is at equal distance from previous prime (220205201) and next prime (220205239).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220205220.

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, 78405 + ... + 81164.

It is an arithmetic number, because the mean of its divisors is an integer number (13403880).

Almost surely, 2^220205220 is an apocalyptic number.

220205220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220205220 is an abundant number, since it is smaller than the sum of its proper divisors (423181020).

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

220205220 is a wasteful number, since it uses less digits than its factorization.

220205220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159604 (or 159602 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 220205220 is about 14839.3133264312. The cubic root of 220205220 is about 603.8687235713.

Adding to 220205220 its reverse (22502022), we get a palindrome (242707242).

The spelling of 220205220 in words is "two hundred twenty million, two hundred five thousand, two hundred twenty".