1321022132200 has 24 divisors (see below), whose sum is σ = 3071376457830. Its totient is φ = 528408852800.

The previous prime is 1321022132197. The next prime is 1321022132201. The reversal of 1321022132200 is 22312201231.

It can be written as a sum of positive squares in 3 ways, for example, as 998668443556 + 322353688644 = 999334^2 + 567762^2 .

It is not an unprimeable number, because it can be changed into a prime (1321022132201) 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, 3302555131 + ... + 3302555530.

Almost surely, 2^{1321022132200} is an apocalyptic number.

1321022132200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321022132200 is an abundant number, since it is smaller than the sum of its proper divisors (1750354325630).

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

1321022132200 is a wasteful number, since it uses less digits than its factorization.

1321022132200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6605110677 (or 6605110668 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1321022132200 its reverse (22312201231), we get a palindrome (1343334333431).

The spelling of 1321022132200 in words is "one trillion, three hundred twenty-one billion, twenty-two million, one hundred thirty-two thousand, two hundred".