1320221100213 has 24 divisors (see below), whose sum is σ = 1908354503328. Its totient is φ = 879516060192.

The previous prime is 1320221100181. The next prime is 1320221100251. The reversal of 1320221100213 is 3120011220231.

1320221100213 is a `hidden beast` number, since 1 + 320 + 22 + 110 + 0 + 213 = 666.

It is not a de Polignac number, because 1320221100213 - 2⁵ = 1320221100181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320221600213) 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, 84259806 + ... + 84275472.

It is an arithmetic number, because the mean of its divisors is an integer number (79514770972).

Almost surely, 2^{1320221100213} is an apocalyptic number.

It is an amenable number.

1320221100213 is a deficient number, since it is larger than the sum of its proper divisors (588133403115).

1320221100213 is a wasteful number, since it uses less digits than its factorization.

1320221100213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21793 (or 21790 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1320221100213 its reverse (3120011220231), we get a palindrome (4440232320444).

The spelling of 1320221100213 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, one hundred thousand, two hundred thirteen".