12213223122 has 16 divisors (see below), whose sum is σ = 24428901312. Its totient is φ = 4070665200.

The previous prime is 12213223111. The next prime is 12213223129. The reversal of 12213223122 is 22132231221.

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

It is not an unprimeable number, because it can be changed into a prime (12213223129) 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, 34129 + ... + 159972.

It is an arithmetic number, because the mean of its divisors is an integer number (1526806332).

Almost surely, 2^12213223122 is an apocalyptic number.

12213223122 is an abundant number, since it is smaller than the sum of its proper divisors (12215678190).

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

12213223122 is a wasteful number, since it uses less digits than its factorization.

12213223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204593.

The product of its digits is 576, while the sum is 21.

Adding to 12213223122 its reverse (22132231221), we get a palindrome (34345454343).

The spelling of 12213223122 in words is "twelve billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-two".