1320000223220 has 24 divisors (see below), whose sum is σ = 3168000536064. Its totient is φ = 452571505056.

The previous prime is 1320000223153. The next prime is 1320000223229. The reversal of 1320000223220 is 223220000231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320000223229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4714286372 + ... + 4714286651.

It is an arithmetic number, because the mean of its divisors is an integer number (132000022336).

Almost surely, 2^{1320000223220} is an apocalyptic number.

1320000223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320000223220 is an abundant number, since it is smaller than the sum of its proper divisors (1848000312844).

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

1320000223220 is a wasteful number, since it uses less digits than its factorization.

1320000223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9428573039 (or 9428573037 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 1320000223220 its reverse (223220000231), we get a palindrome (1543220223451).

The spelling of 1320000223220 in words is "one trillion, three hundred twenty billion, two hundred twenty-three thousand, two hundred twenty".