220344303220 has 24 divisors (see below), whose sum is σ = 462734005608. Its totient is φ = 88135632000.

The previous prime is 220344303211. The next prime is 220344303227. The reversal of 220344303220 is 22303443022.

It can be written as a sum of positive squares in 4 ways, for example, as 106313819364 + 114030483856 = 326058^2 + 337684^2 .

It is a super-2 number, since 2×220344303220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220344303227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953890 + ... + 1162150.

It is an arithmetic number, because the mean of its divisors is an integer number (19280583567).

Almost surely, 2^220344303220 is an apocalyptic number.

220344303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220344303220 is an abundant number, since it is smaller than the sum of its proper divisors (242389702388).

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

220344303220 is a wasteful number, since it uses less digits than its factorization.

220344303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261171 (or 261169 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 220344303220 its reverse (22303443022), we get a palindrome (242647746242).

The spelling of 220344303220 in words is "two hundred twenty billion, three hundred forty-four million, three hundred three thousand, two hundred twenty".