1321101432200 has 192 divisors, whose sum is σ = 3500675496000. Its totient is φ = 459240320000.

The previous prime is 1321101432163. The next prime is 1321101432253. The reversal of 1321101432200 is 22341011231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6341291 + ... + 6546309.

It is an arithmetic number, because the mean of its divisors is an integer number (18232684875).

Almost surely, 2^{1321101432200} is an apocalyptic number.

1321101432200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321101432200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1750337748000).

1321101432200 is an abundant number, since it is smaller than the sum of its proper divisors (2179574063800).

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

1321101432200 is a wasteful number, since it uses less digits than its factorization.

1321101432200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205176 (or 205167 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1321101432200 its reverse (22341011231), we get a palindrome (1343442443431).

The spelling of 1321101432200 in words is "one trillion, three hundred twenty-one billion, one hundred one million, four hundred thirty-two thousand, two hundred".