1331002200 has 96 divisors (see below), whose sum is σ = 4501229760. Its totient is φ = 322665600.

The previous prime is 1331002129. The next prime is 1331002201. The reversal of 1331002200 is 22001331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331002201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94234 + ... + 107433.

It is an arithmetic number, because the mean of its divisors is an integer number (46887810).

Almost surely, 2^1331002200 is an apocalyptic number.

1331002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331002200 is an abundant number, since it is smaller than the sum of its proper divisors (3170227560).

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

1331002200 is a wasteful number, since it uses less digits than its factorization.

1331002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201697 (or 201688 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1331002200 is about 36482.9028450314. The cubic root of 1331002200 is about 1100.0006060603. Note that the first 3 decimals are identical.

Adding to 1331002200 its reverse (22001331), we get a palindrome (1353003531).

The spelling of 1331002200 in words is "one billion, three hundred thirty-one million, two thousand, two hundred".