1220330300220 has 576 divisors, whose sum is σ = 4067405072640. Its totient is φ = 295206912000.

The previous prime is 1220330300213. The next prime is 1220330300227. The reversal of 1220330300220 is 220030330221.

It is a happy number.

1220330300220 is a `hidden beast` number, since 12 + 2 + 0 + 330 + 300 + 2 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (1220330300213) and next prime (1220330300227).

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 = 1220330300193 and 1220330300202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220330300227) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1903791100 + ... + 1903791740.

It is an arithmetic number, because the mean of its divisors is an integer number (7061467140).

Almost surely, 2^{1220330300220} is an apocalyptic number.

1220330300220 is a gapful number since it is divisible by the number (10) 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 1220330300220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033702536320).

1220330300220 is an abundant number, since it is smaller than the sum of its proper divisors (2847074772420).

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

1220330300220 is a wasteful number, since it uses less digits than its factorization.

1220330300220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 1220330300220 its reverse (220030330221), we get a palindrome (1440360630441).

The spelling of 1220330300220 in words is "one trillion, two hundred twenty billion, three hundred thirty million, three hundred thousand, two hundred twenty".