2122321103213 has 4 divisors (see below), whose sum is σ = 2157113252508. Its totient is φ = 2087528953920.

The previous prime is 2122321103171. The next prime is 2122321103237. The reversal of 2122321103213 is 3123011232212.

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 160702369129 + 1961618734084 = 400877^2 + 1400578^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122321103213 - 2¹⁰ = 2122321102189 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 (2122321103713) 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, 17396074556 + ... + 17396074677.

It is an arithmetic number, because the mean of its divisors is an integer number (539278313127).

Almost surely, 2^{2122321103213} is an apocalyptic number.

It is an amenable number.

2122321103213 is a deficient number, since it is larger than the sum of its proper divisors (34792149295).

2122321103213 is an equidigital number, since it uses as much as digits as its factorization.

2122321103213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34792149294.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2122321103213 its reverse (3123011232212), we get a palindrome (5245332335425).

The spelling of 2122321103213 in words is "two trillion, one hundred twenty-two billion, three hundred twenty-one million, one hundred three thousand, two hundred thirteen".