1322231200 has 36 divisors (see below), whose sum is σ = 3227898870. Its totient is φ = 528892160.

The previous prime is 1322231167. The next prime is 1322231201. The reversal of 1322231200 is 21322231.

It can be written as a sum of positive squares in 3 ways, for example, as 1167178896 + 155052304 = 34164^2 + 12452^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1322231201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 825595 + ... + 827194.

Almost surely, 2^1322231200 is an apocalyptic number.

1322231200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322231200 is an abundant number, since it is smaller than the sum of its proper divisors (1905667670).

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

1322231200 is a wasteful number, since it uses less digits than its factorization.

1322231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652809 (or 1652796 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1322231200 is about 36362.4971639738. The cubic root of 1322231200 is about 1097.5790282495.

Adding to 1322231200 its reverse (21322231), we get a palindrome (1343553431).

The spelling of 1322231200 in words is "one billion, three hundred twenty-two million, two hundred thirty-one thousand, two hundred".