1222211122 has 24 divisors (see below), whose sum is σ = 2090738160. Its totient is φ = 531391080.

The previous prime is 1222211093. The next prime is 1222211129. The reversal of 1222211122 is 2211122221.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1222211096 and 1222211105.

It is not an unprimeable number, because it can be changed into a prime (1222211129) 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, 40872 + ... + 64147.

It is an arithmetic number, because the mean of its divisors is an integer number (87114090).

Almost surely, 2^1222211122 is an apocalyptic number.

1222211122 is a deficient number, since it is larger than the sum of its proper divisors (868527038).

1222211122 is a wasteful number, since it uses less digits than its factorization.

1222211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105078 (or 105055 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 1222211122 is about 34960.1361839453. The cubic root of 1222211122 is about 1069.1748732303.

Adding to 1222211122 its reverse (2211122221), we get a palindrome (3433333343).

The spelling of 1222211122 in words is "one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-two".