2223221213 has 4 divisors (see below), whose sum is σ = 2270523840. Its totient is φ = 2175918588.

The previous prime is 2223221207. The next prime is 2223221219. The reversal of 2223221213 is 3121223222.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (2223221207) and next prime (2223221219).

It is a cyclic number.

It is not a de Polignac number, because 2223221213 - 2⁴ = 2223221197 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 (2223221219) 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, 23651243 + ... + 23651336.

It is an arithmetic number, because the mean of its divisors is an integer number (567630960).

Almost surely, 2^2223221213 is an apocalyptic number.

It is an amenable number.

2223221213 is a deficient number, since it is larger than the sum of its proper divisors (47302627).

2223221213 is an equidigital number, since it uses as much as digits as its factorization.

2223221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47302626.

The product of its digits is 576, while the sum is 20.

The square root of 2223221213 is about 47151.0467858350. The cubic root of 2223221213 is about 1305.1513969282.

Adding to 2223221213 its reverse (3121223222), we get a palindrome (5344444435).

The spelling of 2223221213 in words is "two billion, two hundred twenty-three million, two hundred twenty-one thousand, two hundred thirteen".