1320202103220 has 1152 divisors, whose sum is σ = 5630132551680. Its totient is φ = 241532928000.

The previous prime is 1320202103219. The next prime is 1320202103239. The reversal of 1320202103220 is 223012020231.

1320202103220 is a `hidden beast` number, since 1 + 320 + 2 + 0 + 21 + 0 + 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 = 1320202103193 and 1320202103202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 396574516 + ... + 396577844.

It is an arithmetic number, because the mean of its divisors is an integer number (4887267840).

Almost surely, 2^{1320202103220} is an apocalyptic number.

1320202103220 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 1320202103220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2815066275840).

1320202103220 is an abundant number, since it is smaller than the sum of its proper divisors (4309930448460).

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

1320202103220 is a wasteful number, since it uses less digits than its factorization.

1320202103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477 (or 3472 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1320202103220 its reverse (223012020231), we get a palindrome (1543214123451).

The spelling of 1320202103220 in words is "one trillion, three hundred twenty billion, two hundred two million, one hundred three thousand, two hundred twenty".