2213120223221 has 4 divisors (see below), whose sum is σ = 2213180716032. Its totient is φ = 2213059730412.

The previous prime is 2213120223211. The next prime is 2213120223229. The reversal of 2213120223221 is 1223220213122.

It is a happy number.

2213120223221 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 not a de Polignac number, because 2213120223221 - 2¹⁴ = 2213120206837 is a prime.

It is a super-2 number, since 2×2213120223221² (a number of 25 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 (2213120223229) 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, 30191495 + ... + 30264708.

It is an arithmetic number, because the mean of its divisors is an integer number (553295179008).

Almost surely, 2^{2213120223221} is an apocalyptic number.

It is an amenable number.

2213120223221 is a deficient number, since it is larger than the sum of its proper divisors (60492811).

2213120223221 is an equidigital number, since it uses as much as digits as its factorization.

2213120223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60492810.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2213120223221 its reverse (1223220213122), we get a palindrome (3436340436343).

The spelling of 2213120223221 in words is "two trillion, two hundred thirteen billion, one hundred twenty million, two hundred twenty-three thousand, two hundred twenty-one".