1223232213 has 8 divisors (see below), whose sum is σ = 1863972928. Its totient is φ = 698989824.

The previous prime is 1223232211. The next prime is 1223232221. The reversal of 1223232213 is 3122323221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223232213 - 2¹ = 1223232211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 58249153 = 1223232213 / (1 + 2 + 2 + 3 + 2 + 3 + 2 + 2 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223232213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223232211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29124556 + ... + 29124597.

It is an arithmetic number, because the mean of its divisors is an integer number (232996616).

Almost surely, 2^1223232213 is an apocalyptic number.

It is an amenable number.

1223232213 is a deficient number, since it is larger than the sum of its proper divisors (640740715).

1223232213 is an equidigital number, since it uses as much as digits as its factorization.

1223232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58249163.

The product of its digits is 864, while the sum is 21.

The square root of 1223232213 is about 34974.7367824263. The cubic root of 1223232213 is about 1069.4725361944.

Adding to 1223232213 its reverse (3122323221), we get a palindrome (4345555434).

It can be divided in two parts, 122323221 and 3, that multiplied together give a palindrome (366969663).

The spelling of 1223232213 in words is "one billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred thirteen".