220003223220 has 288 divisors, whose sum is σ = 750417647616. Its totient is φ = 51703142400.

The previous prime is 220003223137. The next prime is 220003223249. The reversal of 220003223220 is 22322300022.

220003223220 is a `hidden beast` number, since 2 + 20 + 0 + 0 + 322 + 322 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220003223193 and 220003223202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20580717 + ... + 20591403.

It is an arithmetic number, because the mean of its divisors is an integer number (2605616832).

Almost surely, 2^220003223220 is an apocalyptic number.

220003223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220003223220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375208823808).

220003223220 is an abundant number, since it is smaller than the sum of its proper divisors (530414424396).

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

220003223220 is a wasteful number, since it uses less digits than its factorization.

220003223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11031 (or 11026 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 220003223220 its reverse (22322300022), we get a palindrome (242325523242).

The spelling of 220003223220 in words is "two hundred twenty billion, three million, two hundred twenty-three thousand, two hundred twenty".