1321101002200 has 96 divisors (see below), whose sum is σ = 3518938389600. Its totient is φ = 451841264640.

The previous prime is 1321101002147. The next prime is 1321101002227. The reversal of 1321101002200 is 22001011231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 580999 + ... + 1726198.

It is an arithmetic number, because the mean of its divisors is an integer number (36655608225).

Almost surely, 2^{1321101002200} is an apocalyptic number.

1321101002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321101002200 is an abundant number, since it is smaller than the sum of its proper divisors (2197837387400).

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

1321101002200 is a wasteful number, since it uses less digits than its factorization.

1321101002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307629 (or 2307620 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1321101002200 its reverse (22001011231), we get a palindrome (1343102013431).

The spelling of 1321101002200 in words is "one trillion, three hundred twenty-one billion, one hundred one million, two thousand, two hundred".