1320212200 has 24 divisors (see below), whose sum is σ = 3069493830. Its totient is φ = 528084800.

The previous prime is 1320212171. The next prime is 1320212233. The reversal of 1320212200 is 22120231.

It can be written as a sum of positive squares in 3 ways, for example, as 626100484 + 694111716 = 25022^2 + 26346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3300331 + ... + 3300730.

Almost surely, 2^1320212200 is an apocalyptic number.

1320212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320212200 is an abundant number, since it is smaller than the sum of its proper divisors (1749281630).

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

1320212200 is a wasteful number, since it uses less digits than its factorization.

1320212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601077 (or 6601068 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1320212200 is about 36334.7244382010. The cubic root of 1320212200 is about 1097.0200889506.

Adding to 1320212200 its reverse (22120231), we get a palindrome (1342332431).

The spelling of 1320212200 in words is "one billion, three hundred twenty million, two hundred twelve thousand, two hundred".