113200130021221 has 4 divisors (see below), whose sum is σ = 113208855859372. Its totient is φ = 113191404183072.

The previous prime is 113200130021161. The next prime is 113200130021227. The reversal of 113200130021221 is 122120031002311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6025252620321 + 107174877400900 = 2454639^2 + 10352530^2 .

It is a cyclic number.

It is not a de Polignac number, because 113200130021221 - 2⁹ = 113200130020709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113200130021227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4362899616 + ... + 4362925561.

It is an arithmetic number, because the mean of its divisors is an integer number (28302213964843).

Almost surely, 2^{113200130021221} is an apocalyptic number.

It is an amenable number.

113200130021221 is a deficient number, since it is larger than the sum of its proper divisors (8725838151).

113200130021221 is an equidigital number, since it uses as much as digits as its factorization.

113200130021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8725838150.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 113200130021221 its reverse (122120031002311), we get a palindrome (235320161023532).

The spelling of 113200130021221 in words is "one hundred thirteen trillion, two hundred billion, one hundred thirty million, twenty-one thousand, two hundred twenty-one".