1222230222 has 24 divisors (see below), whose sum is σ = 2746246776. Its totient is φ = 407409912.

The previous prime is 1222230209. The next prime is 1222230223. The reversal of 1222230222 is 2220322221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222230195 and 1222230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222230223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1256953 + ... + 1257924.

It is an arithmetic number, because the mean of its divisors is an integer number (114426949).

Almost surely, 2^1222230222 is an apocalyptic number.

1222230222 is an abundant number, since it is smaller than the sum of its proper divisors (1524016554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222230222 is an equidigital number, since it uses as much as digits as its factorization.

1222230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514894 (or 2514882 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1222230222 is about 34960.4093511503. The cubic root of 1222230222 is about 1069.1804426810.

Adding to 1222230222 its reverse (2220322221), we get a palindrome (3442552443).

The spelling of 1222230222 in words is "one billion, two hundred twenty-two million, two hundred thirty thousand, two hundred twenty-two".