2213323041221 has 4 divisors (see below), whose sum is σ = 2343518514252. Its totient is φ = 2083127568192.

The previous prime is 2213323041211. The next prime is 2213323041227. The reversal of 2213323041221 is 1221403233122.

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 791121302500 + 1422201738721 = 889450^2 + 1192561^2 .

It is not a de Polignac number, because 2213323041221 - 2³⁰ = 2212249299397 is a prime.

It is a super-3 number, since 3×2213323041221³ (a number of 38 digits) contains 333 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 (2213323041227) 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, 65097736490 + ... + 65097736523.

It is an arithmetic number, because the mean of its divisors is an integer number (585879628563).

Almost surely, 2^{2213323041221} is an apocalyptic number.

It is an amenable number.

2213323041221 is a deficient number, since it is larger than the sum of its proper divisors (130195473031).

2213323041221 is a wasteful number, since it uses less digits than its factorization.

2213323041221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130195473030.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2213323041221 its reverse (1221403233122), we get a palindrome (3434726274343).

The spelling of 2213323041221 in words is "two trillion, two hundred thirteen billion, three hundred twenty-three million, forty-one thousand, two hundred twenty-one".