12222221122122 has 32 divisors (see below), whose sum is σ = 26666792028864. Its totient is φ = 3703685625600.

The previous prime is 12222221122117. The next prime is 12222221122123. The reversal of 12222221122122 is 22122112222221.

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 = 12222221122092 and 12222221122101.

It is not an unprimeable number, because it can be changed into a prime (12222221122123) 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, 21890872 + ... + 22442252.

It is an arithmetic number, because the mean of its divisors is an integer number (833337250902).

Almost surely, 2^{12222221122122} is an apocalyptic number.

12222221122122 is an abundant number, since it is smaller than the sum of its proper divisors (14444570906742).

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

12222221122122 is a wasteful number, since it uses less digits than its factorization.

12222221122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887254.

The product of its digits is 1024, while the sum is 24.

Adding to 12222221122122 its reverse (22122112222221), we get a palindrome (34344333344343).

The spelling of 12222221122122 in words is "twelve trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-two".