1220333120 has 112 divisors (see below), whose sum is σ = 3000621888. Its totient is φ = 472442880.

The previous prime is 1220333113. The next prime is 1220333123. The reversal of 1220333120 is 213330221.

It is not an unprimeable number, because it can be changed into a prime (1220333123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1802222 + ... + 1802898.

Almost surely, 2^1220333120 is an apocalyptic number.

1220333120 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 1220333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500310944).

1220333120 is an abundant number, since it is smaller than the sum of its proper divisors (1780288768).

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

1220333120 is a wasteful number, since it uses less digits than its factorization.

1220333120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1220333120 is about 34933.2666666031. The cubic root of 1220333120 is about 1068.6269750209.

Adding to 1220333120 its reverse (213330221), we get a palindrome (1433663341).

The spelling of 1220333120 in words is "one billion, two hundred twenty million, three hundred thirty-three thousand, one hundred twenty".