2213023121321 has 4 divisors (see below), whose sum is σ = 2214716330832. Its totient is φ = 2211329911812.

The previous prime is 2213023121311. The next prime is 2213023121333. The reversal of 2213023121321 is 1231213203122.

2213023121321 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213023121321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2213023121311) 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, 846602795 + ... + 846605408.

It is an arithmetic number, because the mean of its divisors is an integer number (553679082708).

Almost surely, 2^{2213023121321} is an apocalyptic number.

It is an amenable number.

2213023121321 is a deficient number, since it is larger than the sum of its proper divisors (1693209511).

2213023121321 is a wasteful number, since it uses less digits than its factorization.

2213023121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693209510.

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

Adding to 2213023121321 its reverse (1231213203122), we get a palindrome (3444236324443).

The spelling of 2213023121321 in words is "two trillion, two hundred thirteen billion, twenty-three million, one hundred twenty-one thousand, three hundred twenty-one".