122313002221 has 4 divisors (see below), whose sum is σ = 122659498332. Its totient is φ = 121966506112.

The previous prime is 122313002213. The next prime is 122313002239. The reversal of 122313002221 is 122200313221.

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 50169728196 + 72143274025 = 223986^2 + 268595^2 .

It is a cyclic number.

It is not a de Polignac number, because 122313002221 - 2³ = 122313002213 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 (122313002281) 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, 173247526 + ... + 173248231.

It is an arithmetic number, because the mean of its divisors is an integer number (30664874583).

Almost surely, 2^122313002221 is an apocalyptic number.

It is an amenable number.

122313002221 is a deficient number, since it is larger than the sum of its proper divisors (346496111).

122313002221 is an equidigital number, since it uses as much as digits as its factorization.

122313002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346496110.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 122313002221 its reverse (122200313221), we get a palindrome (244513315442).

The spelling of 122313002221 in words is "one hundred twenty-two billion, three hundred thirteen million, two thousand, two hundred twenty-one".