113320222121 has 4 divisors (see below), whose sum is σ = 113366047572. Its totient is φ = 113274396672.

The previous prime is 113320222111. The next prime is 113320222139. The reversal of 113320222121 is 121222023311.

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 75521085721 + 37799136400 = 274811^2 + 194420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113320222121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113320222093 and 113320222102.

It is not an unprimeable number, because it can be changed into a prime (113320222111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22909016 + ... + 22913961.

It is an arithmetic number, because the mean of its divisors is an integer number (28341511893).

Almost surely, 2^113320222121 is an apocalyptic number.

It is an amenable number.

113320222121 is a deficient number, since it is larger than the sum of its proper divisors (45825451).

113320222121 is an equidigital number, since it uses as much as digits as its factorization.

113320222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45825450.

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

Adding to 113320222121 its reverse (121222023311), we get a palindrome (234542245432).

The spelling of 113320222121 in words is "one hundred thirteen billion, three hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".