12122331101213 has 4 divisors (see below), whose sum is σ = 12122348836188. Its totient is φ = 12122313366240.

The previous prime is 12122331101183. The next prime is 12122331101227. The reversal of 12122331101213 is 31210113322121.

It is a happy number.

12122331101213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10747663959769 + 1374667141444 = 3278363^2 + 1172462^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122331101213 - 2¹⁰ = 12122331100189 is a prime.

It is a super-2 number, since 2×12122331101213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122331101233) 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, 7799306 + ... + 9223547.

It is an arithmetic number, because the mean of its divisors is an integer number (3030587209047).

Almost surely, 2^{12122331101213} is an apocalyptic number.

It is an amenable number.

12122331101213 is a deficient number, since it is larger than the sum of its proper divisors (17734975).

12122331101213 is an equidigital number, since it uses as much as digits as its factorization.

12122331101213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734974.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12122331101213 its reverse (31210113322121), we get a palindrome (43332444423334).

The spelling of 12122331101213 in words is "twelve trillion, one hundred twenty-two billion, three hundred thirty-one million, one hundred one thousand, two hundred thirteen".