1220331200 has 84 divisors (see below), whose sum is σ = 3275804472. Its totient is φ = 443750400.

The previous prime is 1220331197. The next prime is 1220331227. The reversal of 1220331200 is 21330221.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 17069 + ... + 52268.

Almost surely, 2^1220331200 is an apocalyptic number.

1220331200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220331200 is an abundant number, since it is smaller than the sum of its proper divisors (2055473272).

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

1220331200 is a wasteful number, since it uses less digits than its factorization.

1220331200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69370 (or 69355 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1220331200 is about 34933.2391856238. The cubic root of 1220331200 is about 1068.6264145824.

Adding to 1220331200 its reverse (21330221), we get a palindrome (1241661421).

The spelling of 1220331200 in words is "one billion, two hundred twenty million, three hundred thirty-one thousand, two hundred".