122333320213 has 4 divisors (see below), whose sum is σ = 131743575628. Its totient is φ = 112923064800.

The previous prime is 122333320199. The next prime is 122333320223. The reversal of 122333320213 is 312023333221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312023333221 = 15083 ⋅20687087.

It can be written as a sum of positive squares in 2 ways, for example, as 68062026769 + 54271293444 = 260887^2 + 232962^2 .

It is not a de Polignac number, because 122333320213 - 2²⁵ = 122299765781 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 (122333320223) 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, 4705127688 + ... + 4705127713.

It is an arithmetic number, because the mean of its divisors is an integer number (32935893907).

Almost surely, 2^122333320213 is an apocalyptic number.

122333320213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

122333320213 is a deficient number, since it is larger than the sum of its proper divisors (9410255415).

122333320213 is an equidigital number, since it uses as much as digits as its factorization.

122333320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9410255414.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 122333320213 its reverse (312023333221), we get a palindrome (434356653434).

The spelling of 122333320213 in words is "one hundred twenty-two billion, three hundred thirty-three million, three hundred twenty thousand, two hundred thirteen".