1223213222 has 32 divisors (see below), whose sum is σ = 2310246144. Its totient is φ = 471852000.

The previous prime is 1223213153. The next prime is 1223213227. The reversal of 1223213222 is 2223123221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1223213194 and 1223213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223213227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23768 + ... + 54875.

It is an arithmetic number, because the mean of its divisors is an integer number (72195192).

Almost surely, 2^1223213222 is an apocalyptic number.

1223213222 is a deficient number, since it is larger than the sum of its proper divisors (1087032922).

1223213222 is a wasteful number, since it uses less digits than its factorization.

1223213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78764.

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

The square root of 1223213222 is about 34974.4652854050. The cubic root of 1223213222 is about 1069.4670015521.

Adding to 1223213222 its reverse (2223123221), we get a palindrome (3446336443).

Subtracting 1223213222 from its reverse (2223123221), we obtain a palindrome (999909999).

The spelling of 1223213222 in words is "one billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred twenty-two".