220321210220 has 12 divisors (see below), whose sum is σ = 462674541504. Its totient is φ = 88128484080.

The previous prime is 220321210189. The next prime is 220321210223. The reversal of 220321210220 is 22012123022.

It is not an unprimeable number, because it can be changed into a prime (220321210223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5508030236 + ... + 5508030275.

It is an arithmetic number, because the mean of its divisors is an integer number (38556211792).

Almost surely, 2^220321210220 is an apocalyptic number.

220321210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220321210220 is an abundant number, since it is smaller than the sum of its proper divisors (242353331284).

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

220321210220 is a wasteful number, since it uses less digits than its factorization.

220321210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11016060520 (or 11016060518 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220321210220 its reverse (22012123022), we get a palindrome (242333333242).

The spelling of 220321210220 in words is "two hundred twenty billion, three hundred twenty-one million, two hundred ten thousand, two hundred twenty".